From 86aa793d3f8432f4759b2a5b2301632d9cc24670 Mon Sep 17 00:00:00 2001
From: Ehsan Ziya <ehsan.ziya@gmail.com>
Date: Fri, 22 Apr 2016 15:26:09 +0100
Subject: [PATCH] Feature: Support for adding multiple layers in beet.add

---
 README.md                            |  4 +--
 build/beet.js                        | 48 ++++++++++++++++++----------
 build/beet.min.js                    |  8 ++---
 build/demo.js                        | 48 ++++++++++++++++++----------
 examples/basic-polyrhythm/index.html |  5 ++-
 lib/beet.js                          | 47 +++++++++++++++++----------
 lib/layer.js                         |  2 +-
 package.json                         |  2 +-
 8 files changed, 102 insertions(+), 62 deletions(-)

diff --git a/README.md b/README.md
index 3aafe2d..e34666a 100644
--- a/README.md
+++ b/README.md
@@ -73,9 +73,9 @@ Pauses the sequencer after a given time in seconds but keeps the current step nu
 #### Parameters
 * `time` (optional) - a number in seconds - defaults to 0
 
-#### `beet.add(layer)`
+#### `beet.add(layer(s))`
 
-Adds a given `beet.layer` to the list of layers to play.
+Adds a given `beet.layer` to the list of layers to play. Can also be used with multiple layers. `beet.add(layer1, layer2)`
 
 #### Parameters
 * `layer` (Required) - a `beet.layer` object.
diff --git a/build/beet.js b/build/beet.js
index a7b7a07..20af54c 100644
--- a/build/beet.js
+++ b/build/beet.js
@@ -7,33 +7,46 @@ var Pattern = require('./pattern');
 var Layer = require('./layer');
 var utils = require('./utils');
 
+if (!Array.from) {
+  Array.from = function (object) {
+    'use strict';
+    return [].slice.call(object);
+  };
+}
+
 function Beet(opts) {
   this.context = opts.context;
   this.tempo = opts.tempo || 120;
   this.layers = [];
   var self = this;
 
-  watch(this, 'tempo', function() {
+  watch(this, 'tempo', function () {
     self._change_tempo(self.tempo);
   });
 }
 
-Beet.prototype.layer = function(seq, on, off) {
+Beet.prototype.layer = function (seq, on, off) {
   var layer = new Layer(this.context, this.tempo, seq, on, off);
   return layer;
 };
 
-Beet.prototype.pattern = function(pulses, steps) {
+Beet.prototype.pattern = function (pulses, steps) {
   var pattern = new Pattern(pulses, steps);
   return pattern;
 };
 
-Beet.prototype.add = function(layer) {
-  this.layers.push(layer);
+Beet.prototype.add = function () {
+  var self = this;
+  var array = Array.from(arguments);
+
+  array.forEach(function (layer) {
+    self.layers.push(layer);
+  });
+
   return this;
 };
 
-Beet.prototype.remove = function(layer) {
+Beet.prototype.remove = function (layer) {
   var index = this.layers.indexOf(layer);
   var found = this.layers[index];
   found.metro.stop();
@@ -41,33 +54,33 @@ Beet.prototype.remove = function(layer) {
   return this;
 };
 
-Beet.prototype.start = function(when) {
+Beet.prototype.start = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.start();
     });
   }, start_time * 1000);
   return this;
 };
 
-Beet.prototype.stop = function(when) {
+Beet.prototype.stop = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.stop();
     });
   }, start_time * 1000);
   return this;
 };
 
-Beet.prototype.pause = function(when) {
+Beet.prototype.pause = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.pause();
     });
   }, start_time * 1000);
@@ -76,8 +89,8 @@ Beet.prototype.pause = function(when) {
 
 Beet.prototype.utils = utils;
 
-Beet.prototype._change_tempo = function(value) {
-  this.layers.forEach(function(layer) {
+Beet.prototype._change_tempo = function (value) {
+  this.layers.forEach(function (layer) {
     layer.metro.tempo = value;
   });
 };
@@ -129,6 +142,7 @@ Layer.prototype.stop = function () {
 };
 
 module.exports = Layer;
+
 },{"wa-metro":8,"watchjs":11}],4:[function(require,module,exports){
 var bjork = require('bjorklund');
 var watch = require('watchjs').watch;
diff --git a/build/beet.min.js b/build/beet.min.js
index 95458e4..e486ac7 100644
--- a/build/beet.min.js
+++ b/build/beet.min.js
@@ -1,4 +1,4 @@
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Beet=f()}})(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){module.exports=require("./lib/beet")},{"./lib/beet":2}],2:[function(require,module,exports){var watch=require("watchjs").watch;var Pattern=require("./pattern");var Layer=require("./layer");var utils=require("./utils");function Beet(opts){this.context=opts.context;this.tempo=opts.tempo||120;this.layers=[];var self=this;watch(this,"tempo",function(){self._change_tempo(self.tempo)})}Beet.prototype.layer=function(seq,on,off){var layer=new Layer(this.context,this.tempo,seq,on,off);return layer};Beet.prototype.pattern=function(pulses,steps){var pattern=new Pattern(pulses,steps);return pattern};Beet.prototype.add=function(layer){this.layers.push(layer);return this};Beet.prototype.remove=function(layer){var index=this.layers.indexOf(layer);var found=this.layers[index];found.metro.stop();this.layers.splice(index,1);return this};Beet.prototype.start=function(when){var self=this;var start_time=when||0;setTimeout(function(){self.layers.forEach(function(layer){layer.start()})},start_time*1e3);return this};Beet.prototype.stop=function(when){var self=this;var start_time=when||0;setTimeout(function(){self.layers.forEach(function(layer){layer.stop()})},start_time*1e3);return this};Beet.prototype.pause=function(when){var self=this;var start_time=when||0;setTimeout(function(){self.layers.forEach(function(layer){layer.pause()})},start_time*1e3);return this};Beet.prototype.utils=utils;Beet.prototype._change_tempo=function(value){this.layers.forEach(function(layer){layer.metro.tempo=value})};module.exports=Beet},{"./layer":3,"./pattern":4,"./utils":5,watchjs:11}],3:[function(require,module,exports){var Metro=require("wa-metro");var watch=require("watchjs").watch;function Layer(context,tempo,sequence,on,off){if(!off)off=function(){};var self=this;this.on=on;this.off=off;this.tempo=tempo;self.metro=new Metro(context,function(time,step,timeFromScheduled){if(self.metro.steps!==sequence.seq.length){self.metro.steps=sequence.seq.length}if(sequence.seq[step-1]==="1"){self.on(time,step,timeFromScheduled)}else{self.off(time,step,timeFromScheduled)}});this.metro.steps=sequence.seq.length;this.metro.tempo=this.tempo;watch(self,["tempo"],function(){self.metro.tempo=self.tempo})}Layer.prototype.start=function(){this.metro.start();return this};Layer.prototype.pause=function(){this.metro.pause();return this};Layer.prototype.stop=function(){this.metro.stop();return this};module.exports=Layer},{"wa-metro":8,watchjs:11}],4:[function(require,module,exports){var bjork=require("bjorklund");var watch=require("watchjs").watch;function Pattern(pulses,steps){var self=this;self._createSequence(pulses,steps);watch(this,["pulses","steps"],function(){self.update(this.pulses,this.steps)});return this}Pattern.prototype.update=function(pulses,steps){var self=this;var typeOfPulses=typeof pulses;self._createSequence(pulses,steps);return this};Pattern.prototype.shift=function(offset){var off=offset>this.seq.length?offset=offset-this.seq.length:offset;if(off===this.seq.length)return this;var tail=this.seq.splice(this.seq.length-off,off);for(var i=0;i<tail.length;i++){this.seq.unshift(tail[i])}return this};Pattern.prototype._createSequence=function(pulses,steps){var self=this;var typeOfPulses=typeof pulses;if(typeOfPulses==="number"){self.pulses=pulses;self.steps=steps||pulses;self.seq=bjork(self.pulses,self.steps).split("")}else if(typeOfPulses==="string"){self.steps=pulses.length;self.seq=pulses.split("")}return this};module.exports=Pattern},{bjorklund:6,watchjs:11}],5:[function(require,module,exports){var notes={c:0,"c#":1,db:1,d:2,"d#":3,eb:3,e:4,f:5,"f#":6,gb:6,g:7,"g#":8,ab:8,a:9,"a#":10,bb:10,b:11};function mtof(midi_note){console.log();return Math.pow(2,(midi_note-69)/12)*440}module.exports.envelope=function(audioParam,now,opts){if(!opts)opts={};var peak=opts.peak||audioParam.defaultValue;if(opts.start===0)opts.start=1e-6;var start=opts.start||audioParam.value;var attack=opts.attack||.1;var decay=opts.decay||0;var sustain=opts.sustain||peak;var release=opts.release||.5;audioParam.setValueAtTime(start,now);audioParam.linearRampToValueAtTime(peak,now+attack);audioParam.linearRampToValueAtTime(sustain,now+attack+decay);audioParam.linearRampToValueAtTime(0,now+attack+decay+release)};module.exports.load=function(path,success,failure){var request=new XMLHttpRequest;request.open("GET",path,true);request.responseType="arraybuffer";request.onload=function(){context.decodeAudioData(request.response,success,failure)};request.onerror=failure;request.send()};module.exports.ntof=function ntof(note_name){var split=note_name.split(/(\d+)/);var note=notes[split[0].toLowerCase()];var octave=parseInt(split[1],10);return mtof(note+octave*12+12)};module.exports.mtop=function mtop(midi_note){return Math.pow(2,(midi_note-60)/12)};module.exports.mtof=mtof},{}],6:[function(require,module,exports){var _=require("lodash");module.exports=function bjorklund(pulses,length){var ones=[];ones.length=pulses>=length?length:pulses;var zeros=[];zeros.length=pulses>=length?0:length-pulses;_.fill(ones,"1");_.fill(zeros,"0");return generate_one_based(ones,zeros)};function generate_one_based(ones,zeros){if(zeros.length>0){var zipped=_.zip(ones,zeros).map(function(item){return _.compact(item).join().replace(/,/g,"")});var partitioned=_.partition(zipped,function(item){return item.length>1});return generate_one_based(partitioned[0],partitioned[1])}else{return ones.reverse().join().replace(/,/g,"")}}function generate_zero_based(ones,zeros){if(zeros.length>0){var zipped=_.zip(zeros,ones).map(function(item){return _.compact(item).join().replace(/,/g,"")});var partitioned=_.partition(zipped,function(item){return item.length>1});return generate_zero_based(partitioned[0],partitioned[1])}else{return 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data=cache.data,result=typeof value=="string"||isObject(value)?data.set.has(value):data.hash[value];return result?0:-1}function cachePush(value){var data=this.data;if(typeof value=="string"||isObject(value)){data.set.add(value)}else{data.hash[value]=true}}function arrayConcat(array,other){var index=-1,length=array.length,othIndex=-1,othLength=other.length,result=Array(length+othLength);while(++index<length){result[index]=array[index]}while(++othIndex<othLength){result[index++]=other[othIndex]}return result}function arrayCopy(source,array){var index=-1,length=source.length;array||(array=Array(length));while(++index<length){array[index]=source[index]}return array}function arrayEach(array,iteratee){var index=-1,length=array.length;while(++index<length){if(iteratee(array[index],index,array)===false){break}}return array}function arrayEachRight(array,iteratee){var length=array.length;while(length--){if(iteratee(array[length],length,array)===false){break}}return array}function 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index=-1,indexOf=getIndexOf(),isCommon=indexOf==baseIndexOf,cache=isCommon&&values.length>=LARGE_ARRAY_SIZE?createCache(values):null,valuesLength=values.length;if(cache){indexOf=cacheIndexOf;isCommon=false;values=cache}outer:while(++index<length){var value=array[index];if(isCommon&&value===value){var valuesIndex=valuesLength;while(valuesIndex--){if(values[valuesIndex]===value){continue outer}}result.push(value)}else if(indexOf(values,value,0)<0){result.push(value)}}return result}var baseEach=createBaseEach(baseForOwn);var baseEachRight=createBaseEach(baseForOwnRight,true);function baseEvery(collection,predicate){var result=true;baseEach(collection,function(value,index,collection){result=!!predicate(value,index,collection);return result});return result}function baseExtremum(collection,iteratee,comparator,exValue){var computed=exValue,result=computed;baseEach(collection,function(value,index,collection){var current=+iteratee(value,index,collection);if(comparator(current,computed)||current===exValue&&current===result){computed=current;result=value}});return result}function baseFill(array,value,start,end){var length=array.length;start=start==null?0:+start||0;if(start<0){start=-start>length?0:length+start}end=end===undefined||end>length?length:+end||0;if(end<0){end+=length}length=start>end?0:end>>>0;start>>>=0;while(start<length){array[start++]=value}return array}function baseFilter(collection,predicate){var result=[];baseEach(collection,function(value,index,collection){if(predicate(value,index,collection)){result.push(value)}});return result}function baseFind(collection,predicate,eachFunc,retKey){var result;eachFunc(collection,function(value,key,collection){if(predicate(value,key,collection)){result=retKey?key:value;return false}});return result}function baseFlatten(array,isDeep,isStrict,result){result||(result=[]);var index=-1,length=array.length;while(++index<length){var value=array[index];if(isObjectLike(value)&&isArrayLike(value)&&(isStrict||isArray(value)||isArguments(value))){if(isDeep){baseFlatten(value,isDeep,isStrict,result)}else{arrayPush(result,value)}}else if(!isStrict){result[result.length]=value}}return result}var baseFor=createBaseFor();var baseForRight=createBaseFor(true);function baseForIn(object,iteratee){return baseFor(object,iteratee,keysIn)}function baseForOwn(object,iteratee){return baseFor(object,iteratee,keys)}function baseForOwnRight(object,iteratee){return baseForRight(object,iteratee,keys)}function baseFunctions(object,props){var index=-1,length=props.length,resIndex=-1,result=[];while(++index<length){var key=props[index];if(isFunction(object[key])){result[++resIndex]=key}}return result}function baseGet(object,path,pathKey){if(object==null){return}if(pathKey!==undefined&&pathKey in toObject(object)){path=[pathKey]}var index=0,length=path.length;while(object!=null&&index<length){object=object[path[index++]]}return index&&index==length?object:undefined}function baseIsEqual(value,other,customizer,isLoose,stackA,stackB){if(value===other){return true}if(value==null||other==null||!isObject(value)&&!isObjectLike(other)){return value!==value&&other!==other}return baseIsEqualDeep(value,other,baseIsEqual,customizer,isLoose,stackA,stackB)}function baseIsEqualDeep(object,other,equalFunc,customizer,isLoose,stackA,stackB){var objIsArr=isArray(object),othIsArr=isArray(other),objTag=arrayTag,othTag=arrayTag;if(!objIsArr){objTag=objToString.call(object);if(objTag==argsTag){objTag=objectTag}else if(objTag!=objectTag){objIsArr=isTypedArray(object)}}if(!othIsArr){othTag=objToString.call(other);if(othTag==argsTag){othTag=objectTag}else if(othTag!=objectTag){othIsArr=isTypedArray(other)}}var objIsObj=objTag==objectTag,othIsObj=othTag==objectTag,isSameTag=objTag==othTag;if(isSameTag&&!(objIsArr||objIsObj)){return equalByTag(object,other,objTag)}if(!isLoose){var objIsWrapped=objIsObj&&hasOwnProperty.call(object,"__wrapped__"),othIsWrapped=othIsObj&&hasOwnProperty.call(other,"__wrapped__");if(objIsWrapped||othIsWrapped){return equalFunc(objIsWrapped?object.value():object,othIsWrapped?other.value():other,customizer,isLoose,stackA,stackB)}}if(!isSameTag){return false}stackA||(stackA=[]);stackB||(stackB=[]);var length=stackA.length;while(length--){if(stackA[length]==object){return stackB[length]==other}}stackA.push(object);stackB.push(other);var result=(objIsArr?equalArrays:equalObjects)(object,other,equalFunc,customizer,isLoose,stackA,stackB);stackA.pop();stackB.pop();return result}function baseIsMatch(object,matchData,customizer){var index=matchData.length,length=index,noCustomizer=!customizer;if(object==null){return!length}object=toObject(object);while(index--){var data=matchData[index];if(noCustomizer&&data[2]?data[1]!==object[data[0]]:!(data[0]in object)){return false}}while(++index<length){data=matchData[index];var key=data[0],objValue=object[key],srcValue=data[1];if(noCustomizer&&data[2]){if(objValue===undefined&&!(key in object)){return false}}else{var result=customizer?customizer(objValue,srcValue,key):undefined;if(!(result===undefined?baseIsEqual(srcValue,objValue,customizer,true):result)){return false}}}return true}function baseMap(collection,iteratee){var index=-1,result=isArrayLike(collection)?Array(collection.length):[];baseEach(collection,function(value,key,collection){result[++index]=iteratee(value,key,collection)});return result}function baseMatches(source){var matchData=getMatchData(source);if(matchData.length==1&&matchData[0][2]){var key=matchData[0][0],value=matchData[0][1];return function(object){if(object==null){return false}return object[key]===value&&(value!==undefined||key in toObject(object))}}return function(object){return baseIsMatch(object,matchData)}}function baseMatchesProperty(path,srcValue){var isArr=isArray(path),isCommon=isKey(path)&&isStrictComparable(srcValue),pathKey=path+"";path=toPath(path);return function(object){if(object==null){return false}var key=pathKey;object=toObject(object);if((isArr||!isCommon)&&!(key in object)){object=path.length==1?object:baseGet(object,baseSlice(path,0,-1));if(object==null){return false}key=last(path);object=toObject(object)}return object[key]===srcValue?srcValue!==undefined||key in object:baseIsEqual(srcValue,object[key],undefined,true);
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index=-1,indexOf=getIndexOf(),length=array.length,isCommon=indexOf==baseIndexOf,isLarge=isCommon&&length>=LARGE_ARRAY_SIZE,seen=isLarge?createCache():null,result=[];if(seen){indexOf=cacheIndexOf;isCommon=false}else{isLarge=false;seen=iteratee?[]:result}outer:while(++index<length){var value=array[index],computed=iteratee?iteratee(value,index,array):value;if(isCommon&&value===value){var seenIndex=seen.length;while(seenIndex--){if(seen[seenIndex]===computed){continue outer}}if(iteratee){seen.push(computed)}result.push(value)}else if(indexOf(seen,computed,0)<0){if(iteratee||isLarge){seen.push(computed)}result.push(value)}}return result}function baseValues(object,props){var index=-1,length=props.length,result=Array(length);while(++index<length){result[index]=object[props[index]]}return result}function baseWhile(array,predicate,isDrop,fromRight){var length=array.length,index=fromRight?length:-1;while((fromRight?index--:++index<length)&&predicate(array[index],index,array)){}return 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offset=argsIndex;while(++rightIndex<rightLength){result[offset+rightIndex]=partials[rightIndex]}while(++holdersIndex<holdersLength){result[offset+holders[holdersIndex]]=args[argsIndex++]}return result}function createAggregator(setter,initializer){return function(collection,iteratee,thisArg){var result=initializer?initializer():{};iteratee=getCallback(iteratee,thisArg,3);if(isArray(collection)){var index=-1,length=collection.length;while(++index<length){var value=collection[index];setter(result,value,iteratee(value,index,collection),collection)}}else{baseEach(collection,function(value,key,collection){setter(result,value,iteratee(value,key,collection),collection)})}return result}}function createAssigner(assigner){return restParam(function(object,sources){var index=-1,length=object==null?0:sources.length,customizer=length>2?sources[length-2]:undefined,guard=length>2?sources[2]:undefined,thisArg=length>1?sources[length-1]:undefined;if(typeof 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function(object,predicate,thisArg){predicate=getCallback(predicate,thisArg,3);return baseFind(object,predicate,objectFunc,true)}}function createFlow(fromRight){return function(){var wrapper,length=arguments.length,index=fromRight?length:-1,leftIndex=0,funcs=Array(length);while(fromRight?index--:++index<length){var func=funcs[leftIndex++]=arguments[index];if(typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}if(!wrapper&&LodashWrapper.prototype.thru&&getFuncName(func)=="wrapper"){wrapper=new LodashWrapper([],true)}}index=wrapper?-1:length;while(++index<length){func=funcs[index];var funcName=getFuncName(func),data=funcName=="wrapper"?getData(func):undefined;if(data&&isLaziable(data[0])&&data[1]==(ARY_FLAG|CURRY_FLAG|PARTIAL_FLAG|REARG_FLAG)&&!data[4].length&&data[9]==1){wrapper=wrapper[getFuncName(data[0])].apply(wrapper,data[3])}else{wrapper=func.length==1&&isLaziable(func)?wrapper[funcName]():wrapper.thru(func)}}return function(){var 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function(object,iteratee,thisArg){var result={};iteratee=getCallback(iteratee,thisArg,3);baseForOwn(object,function(value,key,object){var mapped=iteratee(value,key,object);key=isMapKeys?mapped:key;value=isMapKeys?value:mapped;result[key]=value});return result}}function createPadDir(fromRight){return function(string,length,chars){string=baseToString(string);return(fromRight?string:"")+createPadding(string,length,chars)+(fromRight?"":string)}}function createPartial(flag){var partialFunc=restParam(function(func,partials){var holders=replaceHolders(partials,partialFunc.placeholder);return createWrapper(func,flag,undefined,partials,holders)});return partialFunc}function createReduce(arrayFunc,eachFunc){return function(collection,iteratee,accumulator,thisArg){var initFromArray=arguments.length<3;return typeof 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strLength=string.length;length=+length;if(strLength>=length||!nativeIsFinite(length)){return""}var padLength=length-strLength;chars=chars==null?" ":chars+"";return repeat(chars,nativeCeil(padLength/chars.length)).slice(0,padLength)}function createPartialWrapper(func,bitmask,thisArg,partials){var isBind=bitmask&BIND_FLAG,Ctor=createCtorWrapper(func);function wrapper(){var argsIndex=-1,argsLength=arguments.length,leftIndex=-1,leftLength=partials.length,args=Array(leftLength+argsLength);while(++leftIndex<leftLength){args[leftIndex]=partials[leftIndex]}while(argsLength--){args[leftIndex++]=arguments[++argsIndex]}var fn=this&&this!==root&&this instanceof wrapper?Ctor:func;return fn.apply(isBind?thisArg:this,args)}return wrapper}function createRound(methodName){var func=Math[methodName];return function(number,precision){precision=precision===undefined?0:+precision||0;if(precision){precision=pow(10,precision);return func(number*precision)/precision}return func(number)}}function createSortedIndex(retHighest){return function(array,value,iteratee,thisArg){var callback=getCallback(iteratee);return iteratee==null&&callback===baseCallback?binaryIndex(array,value,retHighest):binaryIndexBy(array,value,callback(iteratee,thisArg,1),retHighest)}}function createWrapper(func,bitmask,thisArg,partials,holders,argPos,ary,arity){var isBindKey=bitmask&BIND_KEY_FLAG;if(!isBindKey&&typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}var length=partials?partials.length:0;if(!length){bitmask&=~(PARTIAL_FLAG|PARTIAL_RIGHT_FLAG);partials=holders=undefined}length-=holders?holders.length:0;if(bitmask&PARTIAL_RIGHT_FLAG){var partialsRight=partials,holdersRight=holders;partials=holders=undefined}var data=isBindKey?undefined:getData(func),newData=[func,bitmask,thisArg,partials,holders,partialsRight,holdersRight,argPos,ary,arity];if(data){mergeData(newData,data);bitmask=newData[1];arity=newData[9]}newData[9]=arity==null?isBindKey?0:func.length:nativeMax(arity-length,0)||0;if(bitmask==BIND_FLAG){var result=createBindWrapper(newData[0],newData[2])}else 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value=="number"&&value>-1&&value%1==0&&value<=MAX_SAFE_INTEGER}function isStrictComparable(value){return value===value&&!isObject(value)}function mergeData(data,source){var bitmask=data[1],srcBitmask=source[1],newBitmask=bitmask|srcBitmask,isCommon=newBitmask<ARY_FLAG;var isCombo=srcBitmask==ARY_FLAG&&bitmask==CURRY_FLAG||srcBitmask==ARY_FLAG&&bitmask==REARG_FLAG&&data[7].length<=source[8]||srcBitmask==(ARY_FLAG|REARG_FLAG)&&bitmask==CURRY_FLAG;if(!(isCommon||isCombo)){return data}if(srcBitmask&BIND_FLAG){data[2]=source[2];newBitmask|=bitmask&BIND_FLAG?0:CURRY_BOUND_FLAG}var value=source[3];if(value){var 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toIterable(value){if(value==null){return[]}if(!isArrayLike(value)){return values(value)}return isObject(value)?value:Object(value)}function toObject(value){return isObject(value)?value:Object(value)}function toPath(value){if(isArray(value)){return value}var result=[];baseToString(value).replace(rePropName,function(match,number,quote,string){result.push(quote?string.replace(reEscapeChar,"$1"):number||match)});return result}function wrapperClone(wrapper){return wrapper instanceof LazyWrapper?wrapper.clone():new LodashWrapper(wrapper.__wrapped__,wrapper.__chain__,arrayCopy(wrapper.__actions__))}function chunk(array,size,guard){if(guard?isIterateeCall(array,size,guard):size==null){size=1}else{size=nativeMax(nativeFloor(size)||1,1)}var index=0,length=array?array.length:0,resIndex=-1,result=Array(nativeCeil(length/size));while(index<length){result[++resIndex]=baseSlice(array,index,index+=size)}return result}function compact(array){var index=-1,length=array?array.length:0,resIndex=-1,result=[];while(++index<length){var value=array[index];if(value){result[++resIndex]=value}}return result}var difference=restParam(function(array,values){return isObjectLike(array)&&isArrayLike(array)?baseDifference(array,baseFlatten(values,false,true)):[]});function drop(array,n,guard){var length=array?array.length:0;if(!length){return[]}if(guard?isIterateeCall(array,n,guard):n==null){n=1}return baseSlice(array,n<0?0:n)}function dropRight(array,n,guard){var length=array?array.length:0;if(!length){return[]}if(guard?isIterateeCall(array,n,guard):n==null){n=1}n=length-(+n||0);return baseSlice(array,0,n<0?0:n)}function dropRightWhile(array,predicate,thisArg){return array&&array.length?baseWhile(array,getCallback(predicate,thisArg,3),true,true):[]}function dropWhile(array,predicate,thisArg){return array&&array.length?baseWhile(array,getCallback(predicate,thisArg,3),true):[]}function fill(array,value,start,end){var 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array=arguments[index];if(isArrayLike(array)){var result=result?arrayPush(baseDifference(result,array),baseDifference(array,result)):array}}return result?baseUniq(result):[]}var zip=restParam(unzip);function zipObject(props,values){var index=-1,length=props?props.length:0,result={};if(length&&!values&&!isArray(props[0])){values=[]}while(++index<length){var key=props[index];if(values){result[key]=values[index]}else if(key){result[key[0]]=key[1]}}return result}var zipWith=restParam(function(arrays){var length=arrays.length,iteratee=length>2?arrays[length-2]:undefined,thisArg=length>1?arrays[length-1]:undefined;if(length>2&&typeof iteratee=="function"){length-=2}else{iteratee=length>1&&typeof thisArg=="function"?(--length,thisArg):undefined;thisArg=undefined}arrays.length=length;return unzipWith(arrays,iteratee,thisArg)});function chain(value){var result=lodash(value);result.__chain__=true;return result}function tap(value,interceptor,thisArg){interceptor.call(thisArg,value);return value}function thru(value,interceptor,thisArg){return interceptor.call(thisArg,value)}function wrapperChain(){return chain(this)}function wrapperCommit(){return new LodashWrapper(this.value(),this.__chain__)}var wrapperConcat=restParam(function(values){values=baseFlatten(values);return this.thru(function(array){return arrayConcat(isArray(array)?array:[toObject(array)],values)})});function wrapperPlant(value){var result,parent=this;while(parent instanceof baseLodash){var clone=wrapperClone(parent);if(result){previous.__wrapped__=clone}else{result=clone}var previous=clone;parent=parent.__wrapped__}previous.__wrapped__=value;return result}function wrapperReverse(){var value=this.__wrapped__;var interceptor=function(value){return wrapped&&wrapped.__dir__<0?value:value.reverse()};if(value instanceof LazyWrapper){var wrapped=value;if(this.__actions__.length){wrapped=new 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func(collection,predicate)}var find=createFind(baseEach);var findLast=createFind(baseEachRight,true);function findWhere(collection,source){return find(collection,baseMatches(source))}var forEach=createForEach(arrayEach,baseEach);var forEachRight=createForEach(arrayEachRight,baseEachRight);var groupBy=createAggregator(function(result,value,key){if(hasOwnProperty.call(result,key)){result[key].push(value)}else{result[key]=[value]}});function includes(collection,target,fromIndex,guard){var length=collection?getLength(collection):0;if(!isLength(length)){collection=values(collection);length=collection.length}if(typeof fromIndex!="number"||guard&&isIterateeCall(target,fromIndex,guard)){fromIndex=0}else{fromIndex=fromIndex<0?nativeMax(length+fromIndex,0):fromIndex||0}return typeof collection=="string"||!isArray(collection)&&isString(collection)?fromIndex<=length&&collection.indexOf(target,fromIndex)>-1:!!length&&getIndexOf(collection,target,fromIndex)>-1}var indexBy=createAggregator(function(result,value,key){result[key]=value});var invoke=restParam(function(collection,path,args){var index=-1,isFunc=typeof path=="function",isProp=isKey(path),result=isArrayLike(collection)?Array(collection.length):[];baseEach(collection,function(value){var func=isFunc?path:isProp&&value!=null?value[path]:undefined;result[++index]=func?func.apply(value,args):invokePath(value,path,args)});return result});function map(collection,iteratee,thisArg){var func=isArray(collection)?arrayMap:baseMap;iteratee=getCallback(iteratee,thisArg,3);return func(collection,iteratee)}var partition=createAggregator(function(result,value,key){result[key?0:1].push(value)},function(){return[[],[]]});function pluck(collection,path){return map(collection,property(path))}var reduce=createReduce(arrayReduce,baseEach);var reduceRight=createReduce(arrayReduceRight,baseEachRight);function reject(collection,predicate,thisArg){var func=isArray(collection)?arrayFilter:baseFilter;predicate=getCallback(predicate,thisArg,3);return func(collection,function(value,index,collection){return!predicate(value,index,collection)})}function sample(collection,n,guard){if(guard?isIterateeCall(collection,n,guard):n==null){collection=toIterable(collection);var length=collection.length;return length>0?collection[baseRandom(0,length-1)]:undefined}var index=-1,result=toArray(collection),length=result.length,lastIndex=length-1;n=nativeMin(n<0?0:+n||0,length);while(++index<n){var rand=baseRandom(index,lastIndex),value=result[rand];result[rand]=result[index];result[index]=value}result.length=n;return result}function shuffle(collection){return sample(collection,POSITIVE_INFINITY)}function size(collection){var length=collection?getLength(collection):0;return isLength(length)?length:keys(collection).length}function some(collection,predicate,thisArg){var func=isArray(collection)?arraySome:baseSome;if(thisArg&&isIterateeCall(collection,predicate,thisArg)){predicate=undefined}if(typeof predicate!="function"||thisArg!==undefined){predicate=getCallback(predicate,thisArg,3)}return func(collection,predicate)}function sortBy(collection,iteratee,thisArg){if(collection==null){return[]}if(thisArg&&isIterateeCall(collection,iteratee,thisArg)){iteratee=undefined}var index=-1;iteratee=getCallback(iteratee,thisArg,3);var result=baseMap(collection,function(value,key,collection){return{criteria:iteratee(value,key,collection),index:++index,value:value}});return baseSortBy(result,compareAscending)}var sortByAll=restParam(function(collection,iteratees){if(collection==null){return[]}var guard=iteratees[2];if(guard&&isIterateeCall(iteratees[0],iteratees[1],guard)){iteratees.length=1}return baseSortByOrder(collection,baseFlatten(iteratees),[])});function sortByOrder(collection,iteratees,orders,guard){if(collection==null){return[]}if(guard&&isIterateeCall(iteratees,orders,guard)){orders=undefined}if(!isArray(iteratees)){iteratees=iteratees==null?[]:[iteratees]}if(!isArray(orders)){orders=orders==null?[]:[orders]}return baseSortByOrder(collection,iteratees,orders)}function where(collection,source){return filter(collection,baseMatches(source))}var now=nativeNow||function(){return(new Date).getTime()};function after(n,func){if(typeof func!="function"){if(typeof n=="function"){var temp=n;n=func;func=temp}else{throw new TypeError(FUNC_ERROR_TEXT)}}n=nativeIsFinite(n=+n)?n:0;return function(){if(--n<1){return func.apply(this,arguments)}}}function ary(func,n,guard){if(guard&&isIterateeCall(func,n,guard)){n=undefined}n=func&&n==null?func.length:nativeMax(+n||0,0);return createWrapper(func,ARY_FLAG,undefined,undefined,undefined,undefined,n)}function before(n,func){var result;if(typeof func!="function"){if(typeof n=="function"){var temp=n;n=func;func=temp}else{throw new TypeError(FUNC_ERROR_TEXT)}}return function(){if(--n>0){result=func.apply(this,arguments)}if(n<=1){func=undefined}return result}}var bind=restParam(function(func,thisArg,partials){var bitmask=BIND_FLAG;if(partials.length){var holders=replaceHolders(partials,bind.placeholder);bitmask|=PARTIAL_FLAG}return createWrapper(func,bitmask,thisArg,partials,holders)});var bindAll=restParam(function(object,methodNames){methodNames=methodNames.length?baseFlatten(methodNames):functions(object);var index=-1,length=methodNames.length;while(++index<length){var key=methodNames[index];object[key]=createWrapper(object[key],BIND_FLAG,object)}return object});var bindKey=restParam(function(object,key,partials){var bitmask=BIND_FLAG|BIND_KEY_FLAG;if(partials.length){var holders=replaceHolders(partials,bindKey.placeholder);bitmask|=PARTIAL_FLAG}return createWrapper(key,bitmask,object,partials,holders)});var curry=createCurry(CURRY_FLAG);var curryRight=createCurry(CURRY_RIGHT_FLAG);function debounce(func,wait,options){var args,maxTimeoutId,result,stamp,thisArg,timeoutId,trailingCall,lastCalled=0,maxWait=false,trailing=true;if(typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}wait=wait<0?0:+wait||0;if(options===true){var leading=true;trailing=false}else if(isObject(options)){leading=!!options.leading;maxWait="maxWait"in options&&nativeMax(+options.maxWait||0,wait);trailing="trailing"in options?!!options.trailing:trailing}function cancel(){if(timeoutId){clearTimeout(timeoutId)}if(maxTimeoutId){clearTimeout(maxTimeoutId)}lastCalled=0;maxTimeoutId=timeoutId=trailingCall=undefined}function complete(isCalled,id){if(id){clearTimeout(id)}maxTimeoutId=timeoutId=trailingCall=undefined;if(isCalled){lastCalled=now();result=func.apply(thisArg,args);if(!timeoutId&&!maxTimeoutId){args=thisArg=undefined}}}function delayed(){var remaining=wait-(now()-stamp);if(remaining<=0||remaining>wait){complete(trailingCall,maxTimeoutId)}else{timeoutId=setTimeout(delayed,remaining)}}function maxDelayed(){complete(trailing,timeoutId)}function debounced(){args=arguments;stamp=now();thisArg=this;trailingCall=trailing&&(timeoutId||!leading);if(maxWait===false){var leadingCall=leading&&!timeoutId}else{if(!maxTimeoutId&&!leading){lastCalled=stamp}var remaining=maxWait-(stamp-lastCalled),isCalled=remaining<=0||remaining>maxWait;if(isCalled){if(maxTimeoutId){maxTimeoutId=clearTimeout(maxTimeoutId)}lastCalled=stamp;result=func.apply(thisArg,args)}else if(!maxTimeoutId){maxTimeoutId=setTimeout(maxDelayed,remaining)}}if(isCalled&&timeoutId){timeoutId=clearTimeout(timeoutId)}else if(!timeoutId&&wait!==maxWait){timeoutId=setTimeout(delayed,wait)}if(leadingCall){isCalled=true;result=func.apply(thisArg,args)}if(isCalled&&!timeoutId&&!maxTimeoutId){args=thisArg=undefined}return result}debounced.cancel=cancel;return debounced}var defer=restParam(function(func,args){return baseDelay(func,1,args)});var delay=restParam(function(func,wait,args){return baseDelay(func,wait,args)});var flow=createFlow();var flowRight=createFlow(true);function memoize(func,resolver){if(typeof func!="function"||resolver&&typeof resolver!="function"){throw new TypeError(FUNC_ERROR_TEXT)}var memoized=function(){var args=arguments,key=resolver?resolver.apply(this,args):args[0],cache=memoized.cache;if(cache.has(key)){return cache.get(key)}var result=func.apply(this,args);memoized.cache=cache.set(key,result);return result};memoized.cache=new memoize.Cache;return memoized}var modArgs=restParam(function(func,transforms){transforms=baseFlatten(transforms);if(typeof func!="function"||!arrayEvery(transforms,baseIsFunction)){throw new TypeError(FUNC_ERROR_TEXT)}var length=transforms.length;return restParam(function(args){var index=nativeMin(args.length,length);while(index--){args[index]=transforms[index](args[index])}return 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otherArgs=Array(start+1);index=-1;while(++index<start){otherArgs[index]=args[index]}otherArgs[start]=rest;return func.apply(this,otherArgs)}}function spread(func){if(typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}return function(array){return func.apply(this,array)}}function throttle(func,wait,options){var leading=true,trailing=true;if(typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}if(options===false){leading=false}else if(isObject(options)){leading="leading"in options?!!options.leading:leading;trailing="trailing"in options?!!options.trailing:trailing}return debounce(func,wait,{leading:leading,maxWait:+wait,trailing:trailing})}function wrap(value,wrapper){wrapper=wrapper==null?identity:wrapper;return createWrapper(wrapper,PARTIAL_FLAG,undefined,[value],[])}function clone(value,isDeep,customizer,thisArg){if(isDeep&&typeof isDeep!="boolean"&&isIterateeCall(value,isDeep,customizer)){isDeep=false}else if(typeof isDeep=="function"){thisArg=customizer;customizer=isDeep;isDeep=false}return typeof customizer=="function"?baseClone(value,isDeep,bindCallback(customizer,thisArg,1)):baseClone(value,isDeep)}function cloneDeep(value,customizer,thisArg){return typeof customizer=="function"?baseClone(value,true,bindCallback(customizer,thisArg,1)):baseClone(value,true)}function gt(value,other){return value>other}function gte(value,other){return value>=other}function isArguments(value){return isObjectLike(value)&&isArrayLike(value)&&hasOwnProperty.call(value,"callee")&&!propertyIsEnumerable.call(value,"callee")}var isArray=nativeIsArray||function(value){return isObjectLike(value)&&isLength(value.length)&&objToString.call(value)==arrayTag};function isBoolean(value){return value===true||value===false||isObjectLike(value)&&objToString.call(value)==boolTag}function isDate(value){return isObjectLike(value)&&objToString.call(value)==dateTag}function isElement(value){return!!value&&value.nodeType===1&&isObjectLike(value)&&!isPlainObject(value)}function isEmpty(value){if(value==null){return true}if(isArrayLike(value)&&(isArray(value)||isString(value)||isArguments(value)||isObjectLike(value)&&isFunction(value.splice))){return!value.length}return!keys(value).length}function isEqual(value,other,customizer,thisArg){customizer=typeof customizer=="function"?bindCallback(customizer,thisArg,3):undefined;var result=customizer?customizer(value,other):undefined;return result===undefined?baseIsEqual(value,other,customizer):!!result}function isError(value){return isObjectLike(value)&&typeof value.message=="string"&&objToString.call(value)==errorTag}function isFinite(value){return typeof value=="number"&&nativeIsFinite(value)}function isFunction(value){return isObject(value)&&objToString.call(value)==funcTag}function isObject(value){var type=typeof value;return!!value&&(type=="object"||type=="function")}function isMatch(object,source,customizer,thisArg){customizer=typeof customizer=="function"?bindCallback(customizer,thisArg,3):undefined;return baseIsMatch(object,getMatchData(source),customizer)}function isNaN(value){return isNumber(value)&&value!=+value}function isNative(value){if(value==null){return false}if(isFunction(value)){return reIsNative.test(fnToString.call(value))}return isObjectLike(value)&&reIsHostCtor.test(value)}function isNull(value){return value===null}function isNumber(value){return typeof value=="number"||isObjectLike(value)&&objToString.call(value)==numberTag}function isPlainObject(value){var Ctor;if(!(isObjectLike(value)&&objToString.call(value)==objectTag&&!isArguments(value))||!hasOwnProperty.call(value,"constructor")&&(Ctor=value.constructor,typeof Ctor=="function"&&!(Ctor instanceof Ctor))){return false}var result;baseForIn(value,function(subValue,key){result=key});return result===undefined||hasOwnProperty.call(value,result)}function isRegExp(value){return 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Ctor=object.constructor,index=-1,isProto=typeof Ctor=="function"&&Ctor.prototype===object,result=Array(length),skipIndexes=length>0;while(++index<length){result[index]=index+""}for(var key in object){if(!(skipIndexes&&isIndex(key,length))&&!(key=="constructor"&&(isProto||!hasOwnProperty.call(object,key)))){result.push(key)}}return result}var mapKeys=createObjectMapper(true);var mapValues=createObjectMapper();var omit=restParam(function(object,props){if(object==null){return{}}if(typeof props[0]!="function"){var props=arrayMap(baseFlatten(props),String);return pickByArray(object,baseDifference(keysIn(object),props))}var predicate=bindCallback(props[0],props[1],3);return pickByCallback(object,function(value,key,object){return!predicate(value,key,object)})});function pairs(object){object=toObject(object);var index=-1,props=keys(object),length=props.length,result=Array(length);while(++index<length){var key=props[index];result[index]=[key,object[key]]}return result}var pick=restParam(function(object,props){if(object==null){return{}}return typeof props[0]=="function"?pickByCallback(object,bindCallback(props[0],props[1],3)):pickByArray(object,baseFlatten(props))});function result(object,path,defaultValue){var result=object==null?undefined:object[path];if(result===undefined){if(object!=null&&!isKey(path,object)){path=toPath(path);object=path.length==1?object:baseGet(object,baseSlice(path,0,-1));result=object==null?undefined:object[last(path)]}result=result===undefined?defaultValue:result}return isFunction(result)?result.call(object):result}function set(object,path,value){if(object==null){return object}var pathKey=path+"";path=object[pathKey]!=null||isKey(path,object)?[pathKey]:toPath(path);var index=-1,length=path.length,lastIndex=length-1,nested=object;while(nested!=null&&++index<length){var key=path[index];if(isObject(nested)){if(index==lastIndex){nested[key]=value}else if(nested[key]==null){nested[key]=isIndex(path[index+1])?[]:{}}}nested=nested[key]}return object}function transform(object,iteratee,accumulator,thisArg){var isArr=isArray(object)||isTypedArray(object);iteratee=getCallback(iteratee,thisArg,4);if(accumulator==null){if(isArr||isObject(object)){var Ctor=object.constructor;if(isArr){accumulator=isArray(object)?new Ctor:[]}else{accumulator=baseCreate(isFunction(Ctor)?Ctor.prototype:undefined)}}else{accumulator={}}}(isArr?arrayEach:baseForOwn)(object,function(value,index,object){return iteratee(accumulator,value,index,object)});return accumulator}function values(object){return baseValues(object,keys(object))}function valuesIn(object){return baseValues(object,keysIn(object))}function inRange(value,start,end){start=+start||0;if(end===undefined){end=start;start=0}else{end=+end||0}return value>=nativeMin(start,end)&&value<nativeMax(start,end)}function 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Pattern=require("./pattern");var Layer=require("./layer");var utils=require("./utils");if(!Array.from){Array.from=function(object){"use strict";return[].slice.call(object)}}function Beet(opts){this.context=opts.context;this.tempo=opts.tempo||120;this.layers=[];var self=this;watch(this,"tempo",function(){self._change_tempo(self.tempo)})}Beet.prototype.layer=function(seq,on,off){var layer=new Layer(this.context,this.tempo,seq,on,off);return layer};Beet.prototype.pattern=function(pulses,steps){var pattern=new Pattern(pulses,steps);return pattern};Beet.prototype.add=function(){var self=this;var array=Array.from(arguments);array.forEach(function(layer){self.layers.push(layer)});return this};Beet.prototype.remove=function(layer){var index=this.layers.indexOf(layer);var found=this.layers[index];found.metro.stop();this.layers.splice(index,1);return this};Beet.prototype.start=function(when){var self=this;var start_time=when||0;setTimeout(function(){self.layers.forEach(function(layer){layer.start()})},start_time*1e3);return this};Beet.prototype.stop=function(when){var self=this;var start_time=when||0;setTimeout(function(){self.layers.forEach(function(layer){layer.stop()})},start_time*1e3);return this};Beet.prototype.pause=function(when){var self=this;var start_time=when||0;setTimeout(function(){self.layers.forEach(function(layer){layer.pause()})},start_time*1e3);return this};Beet.prototype.utils=utils;Beet.prototype._change_tempo=function(value){this.layers.forEach(function(layer){layer.metro.tempo=value})};module.exports=Beet},{"./layer":3,"./pattern":4,"./utils":5,watchjs:11}],3:[function(require,module,exports){var Metro=require("wa-metro");var watch=require("watchjs").watch;function Layer(context,tempo,sequence,on,off){if(!off)off=function(){};var self=this;this.on=on;this.off=off;this.tempo=tempo;self.metro=new 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peak=opts.peak||audioParam.defaultValue;if(opts.start===0)opts.start=1e-6;var start=opts.start||audioParam.value;var attack=opts.attack||.1;var decay=opts.decay||0;var sustain=opts.sustain||peak;var release=opts.release||.5;audioParam.setValueAtTime(start,now);audioParam.linearRampToValueAtTime(peak,now+attack);audioParam.linearRampToValueAtTime(sustain,now+attack+decay);audioParam.linearRampToValueAtTime(0,now+attack+decay+release)};module.exports.load=function(path,success,failure){var request=new XMLHttpRequest;request.open("GET",path,true);request.responseType="arraybuffer";request.onload=function(){context.decodeAudioData(request.response,success,failure)};request.onerror=failure;request.send()};module.exports.ntof=function ntof(note_name){var split=note_name.split(/(\d+)/);var note=notes[split[0].toLowerCase()];var octave=parseInt(split[1],10);return mtof(note+octave*12+12)};module.exports.mtop=function mtop(midi_note){return Math.pow(2,(midi_note-60)/12)};module.exports.mtof=mtof},{}],6:[function(require,module,exports){var _=require("lodash");module.exports=function bjorklund(pulses,length){var ones=[];ones.length=pulses>=length?length:pulses;var zeros=[];zeros.length=pulses>=length?0:length-pulses;_.fill(ones,"1");_.fill(zeros,"0");return generate_one_based(ones,zeros)};function generate_one_based(ones,zeros){if(zeros.length>0){var zipped=_.zip(ones,zeros).map(function(item){return _.compact(item).join().replace(/,/g,"")});var partitioned=_.partition(zipped,function(item){return item.length>1});return generate_one_based(partitioned[0],partitioned[1])}else{return ones.reverse().join().replace(/,/g,"")}}function generate_zero_based(ones,zeros){if(zeros.length>0){var zipped=_.zip(zeros,ones).map(function(item){return _.compact(item).join().replace(/,/g,"")});var partitioned=_.partition(zipped,function(item){return item.length>1});return generate_zero_based(partitioned[0],partitioned[1])}else{return 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data=cache.data,result=typeof value=="string"||isObject(value)?data.set.has(value):data.hash[value];return result?0:-1}function cachePush(value){var data=this.data;if(typeof value=="string"||isObject(value)){data.set.add(value)}else{data.hash[value]=true}}function arrayConcat(array,other){var index=-1,length=array.length,othIndex=-1,othLength=other.length,result=Array(length+othLength);while(++index<length){result[index]=array[index]}while(++othIndex<othLength){result[index++]=other[othIndex]}return result}function arrayCopy(source,array){var index=-1,length=source.length;array||(array=Array(length));while(++index<length){array[index]=source[index]}return array}function arrayEach(array,iteratee){var index=-1,length=array.length;while(++index<length){if(iteratee(array[index],index,array)===false){break}}return array}function arrayEachRight(array,iteratee){var length=array.length;while(length--){if(iteratee(array[length],length,array)===false){break}}return array}function 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index=-1,indexOf=getIndexOf(),isCommon=indexOf==baseIndexOf,cache=isCommon&&values.length>=LARGE_ARRAY_SIZE?createCache(values):null,valuesLength=values.length;if(cache){indexOf=cacheIndexOf;isCommon=false;values=cache}outer:while(++index<length){var value=array[index];if(isCommon&&value===value){var valuesIndex=valuesLength;while(valuesIndex--){if(values[valuesIndex]===value){continue outer}}result.push(value)}else if(indexOf(values,value,0)<0){result.push(value)}}return result}var baseEach=createBaseEach(baseForOwn);var baseEachRight=createBaseEach(baseForOwnRight,true);function baseEvery(collection,predicate){var result=true;baseEach(collection,function(value,index,collection){result=!!predicate(value,index,collection);return result});return result}function baseExtremum(collection,iteratee,comparator,exValue){var computed=exValue,result=computed;baseEach(collection,function(value,index,collection){var current=+iteratee(value,index,collection);if(comparator(current,computed)||current===exValue&&current===result){computed=current;result=value}});return result}function baseFill(array,value,start,end){var length=array.length;start=start==null?0:+start||0;if(start<0){start=-start>length?0:length+start}end=end===undefined||end>length?length:+end||0;if(end<0){end+=length}length=start>end?0:end>>>0;start>>>=0;while(start<length){array[start++]=value}return array}function baseFilter(collection,predicate){var result=[];baseEach(collection,function(value,index,collection){if(predicate(value,index,collection)){result.push(value)}});return result}function baseFind(collection,predicate,eachFunc,retKey){var result;eachFunc(collection,function(value,key,collection){if(predicate(value,key,collection)){result=retKey?key:value;return false}});return result}function baseFlatten(array,isDeep,isStrict,result){result||(result=[]);var index=-1,length=array.length;while(++index<length){var value=array[index];if(isObjectLike(value)&&isArrayLike(value)&&(isStrict||isArray(value)||isArguments(value))){if(isDeep){baseFlatten(value,isDeep,isStrict,result)}else{arrayPush(result,value)}}else if(!isStrict){result[result.length]=value}}return result}var baseFor=createBaseFor();var baseForRight=createBaseFor(true);function baseForIn(object,iteratee){return baseFor(object,iteratee,keysIn)}function baseForOwn(object,iteratee){return baseFor(object,iteratee,keys)}function baseForOwnRight(object,iteratee){return baseForRight(object,iteratee,keys)}function baseFunctions(object,props){var index=-1,length=props.length,resIndex=-1,result=[];while(++index<length){var key=props[index];if(isFunction(object[key])){result[++resIndex]=key}}return result}function baseGet(object,path,pathKey){if(object==null){return}if(pathKey!==undefined&&pathKey in toObject(object)){path=[pathKey]}var index=0,length=path.length;while(object!=null&&index<length){object=object[path[index++]]}return index&&index==length?object:undefined}function baseIsEqual(value,other,customizer,isLoose,stackA,stackB){if(value===other){return true}if(value==null||other==null||!isObject(value)&&!isObjectLike(other)){return value!==value&&other!==other}return baseIsEqualDeep(value,other,baseIsEqual,customizer,isLoose,stackA,stackB)}function baseIsEqualDeep(object,other,equalFunc,customizer,isLoose,stackA,stackB){var objIsArr=isArray(object),othIsArr=isArray(other),objTag=arrayTag,othTag=arrayTag;if(!objIsArr){objTag=objToString.call(object);if(objTag==argsTag){objTag=objectTag}else if(objTag!=objectTag){objIsArr=isTypedArray(object)}}if(!othIsArr){othTag=objToString.call(other);if(othTag==argsTag){othTag=objectTag}else if(othTag!=objectTag){othIsArr=isTypedArray(other)}}var objIsObj=objTag==objectTag,othIsObj=othTag==objectTag,isSameTag=objTag==othTag;if(isSameTag&&!(objIsArr||objIsObj)){return equalByTag(object,other,objTag)}if(!isLoose){var objIsWrapped=objIsObj&&hasOwnProperty.call(object,"__wrapped__"),othIsWrapped=othIsObj&&hasOwnProperty.call(other,"__wrapped__");if(objIsWrapped||othIsWrapped){return equalFunc(objIsWrapped?object.value():object,othIsWrapped?other.value():other,customizer,isLoose,stackA,stackB)}}if(!isSameTag){return false}stackA||(stackA=[]);stackB||(stackB=[]);var length=stackA.length;while(length--){if(stackA[length]==object){return stackB[length]==other}}stackA.push(object);stackB.push(other);var result=(objIsArr?equalArrays:equalObjects)(object,other,equalFunc,customizer,isLoose,stackA,stackB);stackA.pop();stackB.pop();return result}function baseIsMatch(object,matchData,customizer){var index=matchData.length,length=index,noCustomizer=!customizer;if(object==null){return!length}object=toObject(object);while(index--){var data=matchData[index];if(noCustomizer&&data[2]?data[1]!==object[data[0]]:!(data[0]in object)){return false}}while(++index<length){data=matchData[index];var key=data[0],objValue=object[key],srcValue=data[1];if(noCustomizer&&data[2]){if(objValue===undefined&&!(key in object)){return false}}else{var result=customizer?customizer(objValue,srcValue,key):undefined;if(!(result===undefined?baseIsEqual(srcValue,objValue,customizer,true):result)){return false}}}return true}function baseMap(collection,iteratee){var index=-1,result=isArrayLike(collection)?Array(collection.length):[];baseEach(collection,function(value,key,collection){result[++index]=iteratee(value,key,collection)});return result}function baseMatches(source){var matchData=getMatchData(source);if(matchData.length==1&&matchData[0][2]){var key=matchData[0][0],value=matchData[0][1];return function(object){if(object==null){return false}return object[key]===value&&(value!==undefined||key in toObject(object))}}return function(object){return baseIsMatch(object,matchData)}}function baseMatchesProperty(path,srcValue){var isArr=isArray(path),isCommon=isKey(path)&&isStrictComparable(srcValue),pathKey=path+"";path=toPath(path);return function(object){if(object==null){return false}var key=pathKey;object=toObject(object);if((isArr||!isCommon)&&!(key in object)){
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baseMergeDeep(object,source,key,mergeFunc,customizer,stackA,stackB){var length=stackA.length,srcValue=source[key];while(length--){if(stackA[length]==srcValue){object[key]=stackB[length];return}}var value=object[key],result=customizer?customizer(value,srcValue,key,object,source):undefined,isCommon=result===undefined;if(isCommon){result=srcValue;if(isArrayLike(srcValue)&&(isArray(srcValue)||isTypedArray(srcValue))){result=isArray(value)?value:isArrayLike(value)?arrayCopy(value):[]}else if(isPlainObject(srcValue)||isArguments(srcValue)){result=isArguments(value)?toPlainObject(value):isPlainObject(value)?value:{}}else{isCommon=false}}stackA.push(srcValue);stackB.push(result);if(isCommon){object[key]=mergeFunc(result,srcValue,customizer,stackA,stackB)}else if(result===result?result!==value:value===value){object[key]=result}}function baseProperty(key){return function(object){return object==null?undefined:object[key]}}function basePropertyDeep(path){var 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result=0;baseEach(collection,function(value,index,collection){result+=+iteratee(value,index,collection)||0});return result}function baseUniq(array,iteratee){var index=-1,indexOf=getIndexOf(),length=array.length,isCommon=indexOf==baseIndexOf,isLarge=isCommon&&length>=LARGE_ARRAY_SIZE,seen=isLarge?createCache():null,result=[];if(seen){indexOf=cacheIndexOf;isCommon=false}else{isLarge=false;seen=iteratee?[]:result}outer:while(++index<length){var value=array[index],computed=iteratee?iteratee(value,index,array):value;if(isCommon&&value===value){var seenIndex=seen.length;while(seenIndex--){if(seen[seenIndex]===computed){continue outer}}if(iteratee){seen.push(computed)}result.push(value)}else if(indexOf(seen,computed,0)<0){if(iteratee||isLarge){seen.push(computed)}result.push(value)}}return result}function baseValues(object,props){var index=-1,length=props.length,result=Array(length);while(++index<length){result[index]=object[props[index]]}return result}function 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binaryIndexBy(array,value,iteratee,retHighest){value=iteratee(value);var low=0,high=array?array.length:0,valIsNaN=value!==value,valIsNull=value===null,valIsUndef=value===undefined;while(low<high){var mid=nativeFloor((low+high)/2),computed=iteratee(array[mid]),isDef=computed!==undefined,isReflexive=computed===computed;if(valIsNaN){var setLow=isReflexive||retHighest}else if(valIsNull){setLow=isReflexive&&isDef&&(retHighest||computed!=null)}else if(valIsUndef){setLow=isReflexive&&(retHighest||isDef)}else if(computed==null){setLow=false}else{setLow=retHighest?computed<=value:computed<value}if(setLow){low=mid+1}else{high=mid}}return nativeMin(high,MAX_ARRAY_INDEX)}function bindCallback(func,thisArg,argCount){if(typeof func!="function"){return identity}if(thisArg===undefined){return func}switch(argCount){case 1:return function(value){return func.call(thisArg,value)};case 3:return function(value,index,collection){return func.call(thisArg,value,index,collection)};case 4:return 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createBaseFor(fromRight){return function(object,iteratee,keysFunc){var iterable=toObject(object),props=keysFunc(object),length=props.length,index=fromRight?length:-1;while(fromRight?index--:++index<length){var key=props[index];if(iteratee(iterable[key],key,iterable)===false){break}}return object}}function createBindWrapper(func,thisArg){var Ctor=createCtorWrapper(func);function wrapper(){var fn=this&&this!==root&&this instanceof wrapper?Ctor:func;return fn.apply(thisArg,arguments)}return wrapper}function createCache(values){return nativeCreate&&Set?new SetCache(values):null}function createCompounder(callback){return function(string){var index=-1,array=words(deburr(string)),length=array.length,result="";while(++index<length){result=callback(result,array[index],index)}return result}}function createCtorWrapper(Ctor){return function(){var args=arguments;switch(args.length){case 0:return new Ctor;case 1:return new Ctor(args[0]);case 2:return new Ctor(args[0],args[1]);case 3:return new Ctor(args[0],args[1],args[2]);case 4:return new Ctor(args[0],args[1],args[2],args[3]);case 5:return new Ctor(args[0],args[1],args[2],args[3],args[4]);case 6:return new Ctor(args[0],args[1],args[2],args[3],args[4],args[5]);case 7:return new Ctor(args[0],args[1],args[2],args[3],args[4],args[5],args[6])}var thisBinding=baseCreate(Ctor.prototype),result=Ctor.apply(thisBinding,args);return isObject(result)?result:thisBinding}}function createCurry(flag){function curryFunc(func,arity,guard){if(guard&&isIterateeCall(func,arity,guard)){arity=undefined}var result=createWrapper(func,flag,undefined,undefined,undefined,undefined,undefined,arity);result.placeholder=curryFunc.placeholder;return result}return curryFunc}function createDefaults(assigner,customizer){return restParam(function(args){var object=args[0];if(object==null){return object}args.push(customizer);return assigner.apply(undefined,args)})}function createExtremum(comparator,exValue){return function(collection,iteratee,thisArg){if(thisArg&&isIterateeCall(collection,iteratee,thisArg)){iteratee=undefined}iteratee=getCallback(iteratee,thisArg,3);if(iteratee.length==1){collection=isArray(collection)?collection:toIterable(collection);var result=arrayExtremum(collection,iteratee,comparator,exValue);if(!(collection.length&&result===exValue)){return result}}return baseExtremum(collection,iteratee,comparator,exValue)}}function createFind(eachFunc,fromRight){return function(collection,predicate,thisArg){predicate=getCallback(predicate,thisArg,3);if(isArray(collection)){var index=baseFindIndex(collection,predicate,fromRight);return index>-1?collection[index]:undefined}return baseFind(collection,predicate,eachFunc)}}function createFindIndex(fromRight){return function(array,predicate,thisArg){if(!(array&&array.length)){return-1}predicate=getCallback(predicate,thisArg,3);return baseFindIndex(array,predicate,fromRight)}}function createFindKey(objectFunc){return function(object,predicate,thisArg){predicate=getCallback(predicate,thisArg,3);return baseFind(object,predicate,objectFunc,true)}}function createFlow(fromRight){return function(){var wrapper,length=arguments.length,index=fromRight?length:-1,leftIndex=0,funcs=Array(length);while(fromRight?index--:++index<length){var func=funcs[leftIndex++]=arguments[index];if(typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}if(!wrapper&&LodashWrapper.prototype.thru&&getFuncName(func)=="wrapper"){wrapper=new LodashWrapper([],true)}}index=wrapper?-1:length;while(++index<length){func=funcs[index];var funcName=getFuncName(func),data=funcName=="wrapper"?getData(func):undefined;if(data&&isLaziable(data[0])&&data[1]==(ARY_FLAG|CURRY_FLAG|PARTIAL_FLAG|REARG_FLAG)&&!data[4].length&&data[9]==1){wrapper=wrapper[getFuncName(data[0])].apply(wrapper,data[3])}else{wrapper=func.length==1&&isLaziable(func)?wrapper[funcName]():wrapper.thru(func)}}return function(){var args=arguments,value=args[0];if(wrapper&&args.length==1&&isArray(value)&&value.length>=LARGE_ARRAY_SIZE){return wrapper.plant(value).value()}var index=0,result=length?funcs[index].apply(this,args):value;while(++index<length){result=funcs[index].call(this,result)}return result}}}function createForEach(arrayFunc,eachFunc){return function(collection,iteratee,thisArg){return typeof iteratee=="function"&&thisArg===undefined&&isArray(collection)?arrayFunc(collection,iteratee):eachFunc(collection,bindCallback(iteratee,thisArg,3))}}function createForIn(objectFunc){return function(object,iteratee,thisArg){if(typeof iteratee!="function"||thisArg!==undefined){iteratee=bindCallback(iteratee,thisArg,3)}return objectFunc(object,iteratee,keysIn)}}function createForOwn(objectFunc){return function(object,iteratee,thisArg){if(typeof iteratee!="function"||thisArg!==undefined){iteratee=bindCallback(iteratee,thisArg,3)}return objectFunc(object,iteratee)}}function createObjectMapper(isMapKeys){return function(object,iteratee,thisArg){var result={};iteratee=getCallback(iteratee,thisArg,3);baseForOwn(object,function(value,key,object){var mapped=iteratee(value,key,object);key=isMapKeys?mapped:key;value=isMapKeys?value:mapped;result[key]=value});return result}}function createPadDir(fromRight){return function(string,length,chars){string=baseToString(string);return(fromRight?string:"")+createPadding(string,length,chars)+(fromRight?"":string)}}function createPartial(flag){var partialFunc=restParam(function(func,partials){var holders=replaceHolders(partials,partialFunc.placeholder);return createWrapper(func,flag,undefined,partials,holders)});return partialFunc}function createReduce(arrayFunc,eachFunc){return function(collection,iteratee,accumulator,thisArg){var initFromArray=arguments.length<3;return typeof iteratee=="function"&&thisArg===undefined&&isArray(collection)?arrayFunc(collection,iteratee,accumulator,initFromArray):baseReduce(collection,getCallback(iteratee,thisArg,4),accumulator,initFromArray,eachFunc)}}function createHybridWrapper(func,bitmask,thisArg,partials,holders,partialsRight,holdersRight,argPos,ary,arity){var isAry=bitmask&ARY_FLAG,isBind=bitmask&BIND_FLAG,isBindKey=bitmask&BIND_KEY_FLAG,isCurry=bitmask&CURRY_FLAG,isCurryBound=bitmask&CURRY_BOUND_FLAG,isCurryRight=bitmask&CURRY_RIGHT_FLAG,Ctor=isBindKey?undefined:createCtorWrapper(func);function wrapper(){var length=arguments.length,index=length,args=Array(length);while(index--){args[index]=arguments[index]}if(partials){args=composeArgs(args,partials,holders)}if(partialsRight){args=composeArgsRight(args,partialsRight,holdersRight)}if(isCurry||isCurryRight){var placeholder=wrapper.placeholder,argsHolders=replaceHolders(args,placeholder);length-=argsHolders.length;if(length<arity){var newArgPos=argPos?arrayCopy(argPos):undefined,newArity=nativeMax(arity-length,0),newsHolders=isCurry?argsHolders:undefined,newHoldersRight=isCurry?undefined:argsHolders,newPartials=isCurry?args:undefined,newPartialsRight=isCurry?undefined:args;bitmask|=isCurry?PARTIAL_FLAG:PARTIAL_RIGHT_FLAG;bitmask&=~(isCurry?PARTIAL_RIGHT_FLAG:PARTIAL_FLAG);if(!isCurryBound){bitmask&=~(BIND_FLAG|BIND_KEY_FLAG)}var newData=[func,bitmask,thisArg,newPartials,newsHolders,newPartialsRight,newHoldersRight,newArgPos,ary,newArity],result=createHybridWrapper.apply(undefined,newData);if(isLaziable(func)){setData(result,newData)}result.placeholder=placeholder;return result}}var thisBinding=isBind?thisArg:this,fn=isBindKey?thisBinding[func]:func;if(argPos){args=reorder(args,argPos)}if(isAry&&ary<args.length){args.length=ary}if(this&&this!==root&&this instanceof wrapper){fn=Ctor||createCtorWrapper(func)}return fn.apply(thisBinding,args)}return wrapper}function createPadding(string,length,chars){var strLength=string.length;length=+length;if(strLength>=length||!nativeIsFinite(length)){return""}var padLength=length-strLength;chars=chars==null?" ":chars+"";return repeat(chars,nativeCeil(padLength/chars.length)).slice(0,padLength)}function createPartialWrapper(func,bitmask,thisArg,partials){var isBind=bitmask&BIND_FLAG,Ctor=createCtorWrapper(func);function wrapper(){var argsIndex=-1,argsLength=arguments.length,leftIndex=-1,leftLength=partials.length,args=Array(leftLength+argsLength);while(++leftIndex<leftLength){args[leftIndex]=partials[leftIndex]}while(argsLength--){args[leftIndex++]=arguments[++argsIndex]}var fn=this&&this!==root&&this instanceof wrapper?Ctor:func;return fn.apply(isBind?thisArg:this,args)}return wrapper}function createRound(methodName){var func=Math[methodName];return function(number,precision){precision=precision===undefined?0:+precision||0;if(precision){precision=pow(10,precision);return func(number*precision)/precision}return func(number)}}function createSortedIndex(retHighest){return function(array,value,iteratee,thisArg){var callback=getCallback(iteratee);return iteratee==null&&callback===baseCallback?binaryIndex(array,value,retHighest):binaryIndexBy(array,value,callback(iteratee,thisArg,1),retHighest)}}function createWrapper(func,bitmask,thisArg,partials,holders,argPos,ary,arity){var isBindKey=bitmask&BIND_KEY_FLAG;if(!isBindKey&&typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}var length=partials?partials.length:0;if(!length){bitmask&=~(PARTIAL_FLAG|PARTIAL_RIGHT_FLAG);partials=holders=undefined}length-=holders?holders.length:0;if(bitmask&PARTIAL_RIGHT_FLAG){var partialsRight=partials,holdersRight=holders;partials=holders=undefined}var data=isBindKey?undefined:getData(func),newData=[func,bitmask,thisArg,partials,holders,partialsRight,holdersRight,argPos,ary,arity];if(data){mergeData(newData,data);bitmask=newData[1];arity=newData[9]}newData[9]=arity==null?isBindKey?0:func.length:nativeMax(arity-length,0)||0;if(bitmask==BIND_FLAG){var result=createBindWrapper(newData[0],newData[2])}else 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equalByTag(object,other,tag){switch(tag){case boolTag:case dateTag:return+object==+other;case errorTag:return object.name==other.name&&object.message==other.message;case numberTag:return object!=+object?other!=+other:object==+other;case regexpTag:case stringTag:return object==other+""}return false}function equalObjects(object,other,equalFunc,customizer,isLoose,stackA,stackB){var objProps=keys(object),objLength=objProps.length,othProps=keys(other),othLength=othProps.length;if(objLength!=othLength&&!isLoose){return false}var index=objLength;while(index--){var key=objProps[index];if(!(isLoose?key in other:hasOwnProperty.call(other,key))){return false}}var skipCtor=isLoose;while(++index<objLength){key=objProps[index];var objValue=object[key],othValue=other[key],result=customizer?customizer(isLoose?othValue:objValue,isLoose?objValue:othValue,key):undefined;if(!(result===undefined?equalFunc(objValue,othValue,customizer,isLoose,stackA,stackB):result)){return false}skipCtor||(skipCtor=key=="constructor")}if(!skipCtor){var objCtor=object.constructor,othCtor=other.constructor;if(objCtor!=othCtor&&("constructor"in object&&"constructor"in other)&&!(typeof objCtor=="function"&&objCtor instanceof objCtor&&typeof othCtor=="function"&&othCtor instanceof othCtor)){return false}}return true}function getCallback(func,thisArg,argCount){var result=lodash.callback||callback;result=result===callback?baseCallback:result;return argCount?result(func,thisArg,argCount):result}var getData=!metaMap?noop:function(func){return metaMap.get(func)};function getFuncName(func){var result=func.name,array=realNames[result],length=array?array.length:0;while(length--){var data=array[length],otherFunc=data.func;if(otherFunc==null||otherFunc==func){return data.name}}return result}function getIndexOf(collection,target,fromIndex){var result=lodash.indexOf||indexOf;result=result===indexOf?baseIndexOf:result;return collection?result(collection,target,fromIndex):result}var 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value=="number"&&value>-1&&value%1==0&&value<=MAX_SAFE_INTEGER}function isStrictComparable(value){return value===value&&!isObject(value)}function mergeData(data,source){var bitmask=data[1],srcBitmask=source[1],newBitmask=bitmask|srcBitmask,isCommon=newBitmask<ARY_FLAG;var isCombo=srcBitmask==ARY_FLAG&&bitmask==CURRY_FLAG||srcBitmask==ARY_FLAG&&bitmask==REARG_FLAG&&data[7].length<=source[8]||srcBitmask==(ARY_FLAG|REARG_FLAG)&&bitmask==CURRY_FLAG;if(!(isCommon||isCombo)){return data}if(srcBitmask&BIND_FLAG){data[2]=source[2];newBitmask|=bitmask&BIND_FLAG?0:CURRY_BOUND_FLAG}var value=source[3];if(value){var 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result={};baseForIn(object,function(value,key,object){if(predicate(value,key,object)){result[key]=value}});return result}function reorder(array,indexes){var arrLength=array.length,length=nativeMin(indexes.length,arrLength),oldArray=arrayCopy(array);while(length--){var index=indexes[length];array[length]=isIndex(index,arrLength)?oldArray[index]:undefined}return array}var setData=function(){var count=0,lastCalled=0;return function(key,value){var stamp=now(),remaining=HOT_SPAN-(stamp-lastCalled);lastCalled=stamp;if(remaining>0){if(++count>=HOT_COUNT){return key}}else{count=0}return baseSetData(key,value)}}();function shimKeys(object){var props=keysIn(object),propsLength=props.length,length=propsLength&&object.length;var allowIndexes=!!length&&isLength(length)&&(isArray(object)||isArguments(object));var index=-1,result=[];while(++index<propsLength){var key=props[index];if(allowIndexes&&isIndex(key,length)||hasOwnProperty.call(object,key)){result.push(key)}}return result}function toIterable(value){if(value==null){return[]}if(!isArrayLike(value)){return values(value)}return isObject(value)?value:Object(value)}function toObject(value){return isObject(value)?value:Object(value)}function toPath(value){if(isArray(value)){return value}var result=[];baseToString(value).replace(rePropName,function(match,number,quote,string){result.push(quote?string.replace(reEscapeChar,"$1"):number||match)});return result}function wrapperClone(wrapper){return wrapper instanceof LazyWrapper?wrapper.clone():new LodashWrapper(wrapper.__wrapped__,wrapper.__chain__,arrayCopy(wrapper.__actions__))}function chunk(array,size,guard){if(guard?isIterateeCall(array,size,guard):size==null){size=1}else{size=nativeMax(nativeFloor(size)||1,1)}var index=0,length=array?array.length:0,resIndex=-1,result=Array(nativeCeil(length/size));while(index<length){result[++resIndex]=baseSlice(array,index,index+=size)}return result}function compact(array){var index=-1,length=array?array.length:0,resIndex=-1,result=[];while(++index<length){var value=array[index];if(value){result[++resIndex]=value}}return result}var difference=restParam(function(array,values){return isObjectLike(array)&&isArrayLike(array)?baseDifference(array,baseFlatten(values,false,true)):[]});function drop(array,n,guard){var length=array?array.length:0;if(!length){return[]}if(guard?isIterateeCall(array,n,guard):n==null){n=1}return baseSlice(array,n<0?0:n)}function dropRight(array,n,guard){var length=array?array.length:0;if(!length){return[]}if(guard?isIterateeCall(array,n,guard):n==null){n=1}n=length-(+n||0);return baseSlice(array,0,n<0?0:n)}function dropRightWhile(array,predicate,thisArg){return array&&array.length?baseWhile(array,getCallback(predicate,thisArg,3),true,true):[]}function dropWhile(array,predicate,thisArg){return array&&array.length?baseWhile(array,getCallback(predicate,thisArg,3),true):[]}function fill(array,value,start,end){var 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length=array?array.length:0;if(!length){return[]}if(end&&typeof end!="number"&&isIterateeCall(array,start,end)){start=0;end=length}return baseSlice(array,start,end)}var sortedIndex=createSortedIndex();var sortedLastIndex=createSortedIndex(true);function take(array,n,guard){var length=array?array.length:0;if(!length){return[]}if(guard?isIterateeCall(array,n,guard):n==null){n=1}return baseSlice(array,0,n<0?0:n)}function takeRight(array,n,guard){var length=array?array.length:0;if(!length){return[]}if(guard?isIterateeCall(array,n,guard):n==null){n=1}n=length-(+n||0);return baseSlice(array,n<0?0:n)}function takeRightWhile(array,predicate,thisArg){return array&&array.length?baseWhile(array,getCallback(predicate,thisArg,3),false,true):[]}function takeWhile(array,predicate,thisArg){return array&&array.length?baseWhile(array,getCallback(predicate,thisArg,3)):[]}var union=restParam(function(arrays){return baseUniq(baseFlatten(arrays,false,true))});function uniq(array,isSorted,iteratee,thisArg){var length=array?array.length:0;if(!length){return[]}if(isSorted!=null&&typeof isSorted!="boolean"){thisArg=iteratee;iteratee=isIterateeCall(array,isSorted,thisArg)?undefined:isSorted;isSorted=false}var callback=getCallback();if(!(iteratee==null&&callback===baseCallback)){iteratee=callback(iteratee,thisArg,3)}return isSorted&&getIndexOf()==baseIndexOf?sortedUniq(array,iteratee):baseUniq(array,iteratee)}function unzip(array){if(!(array&&array.length)){return[]}var index=-1,length=0;array=arrayFilter(array,function(group){if(isArrayLike(group)){length=nativeMax(group.length,length);return true}});var result=Array(length);while(++index<length){result[index]=arrayMap(array,baseProperty(index))}return result}function unzipWith(array,iteratee,thisArg){var length=array?array.length:0;if(!length){return[]}var result=unzip(array);if(iteratee==null){return result}iteratee=bindCallback(iteratee,thisArg,4);return arrayMap(result,function(group){return arrayReduce(group,iteratee,undefined,true)})}var without=restParam(function(array,values){return isArrayLike(array)?baseDifference(array,values):[]});function xor(){var index=-1,length=arguments.length;while(++index<length){var array=arguments[index];if(isArrayLike(array)){var result=result?arrayPush(baseDifference(result,array),baseDifference(array,result)):array}}return result?baseUniq(result):[]}var zip=restParam(unzip);function zipObject(props,values){var index=-1,length=props?props.length:0,result={};if(length&&!values&&!isArray(props[0])){values=[]}while(++index<length){var key=props[index];if(values){result[key]=values[index]}else if(key){result[key[0]]=key[1]}}return result}var zipWith=restParam(function(arrays){var length=arrays.length,iteratee=length>2?arrays[length-2]:undefined,thisArg=length>1?arrays[length-1]:undefined;if(length>2&&typeof iteratee=="function"){length-=2}else{iteratee=length>1&&typeof thisArg=="function"?(--length,thisArg):undefined;thisArg=undefined}arrays.length=length;return unzipWith(arrays,iteratee,thisArg)});function chain(value){var result=lodash(value);result.__chain__=true;return result}function tap(value,interceptor,thisArg){interceptor.call(thisArg,value);return value}function thru(value,interceptor,thisArg){return interceptor.call(thisArg,value)}function wrapperChain(){return chain(this)}function wrapperCommit(){return new LodashWrapper(this.value(),this.__chain__)}var wrapperConcat=restParam(function(values){values=baseFlatten(values);return this.thru(function(array){return arrayConcat(isArray(array)?array:[toObject(array)],values)})});function wrapperPlant(value){var result,parent=this;while(parent instanceof baseLodash){var clone=wrapperClone(parent);if(result){previous.__wrapped__=clone}else{result=clone}var previous=clone;parent=parent.__wrapped__}previous.__wrapped__=value;return result}function wrapperReverse(){var value=this.__wrapped__;var interceptor=function(value){return wrapped&&wrapped.__dir__<0?value:value.reverse()};if(value instanceof LazyWrapper){var wrapped=value;if(this.__actions__.length){wrapped=new LazyWrapper(this)}wrapped=wrapped.reverse();wrapped.__actions__.push({func:thru,args:[interceptor],thisArg:undefined});return new LodashWrapper(wrapped,this.__chain__)}return this.thru(interceptor)}function wrapperToString(){return this.value()+""}function wrapperValue(){return baseWrapperValue(this.__wrapped__,this.__actions__)}var at=restParam(function(collection,props){return baseAt(collection,baseFlatten(props))});var countBy=createAggregator(function(result,value,key){hasOwnProperty.call(result,key)?++result[key]:result[key]=1});function every(collection,predicate,thisArg){var func=isArray(collection)?arrayEvery:baseEvery;if(thisArg&&isIterateeCall(collection,predicate,thisArg)){predicate=undefined}if(typeof predicate!="function"||thisArg!==undefined){predicate=getCallback(predicate,thisArg,3)}return func(collection,predicate)}function filter(collection,predicate,thisArg){var func=isArray(collection)?arrayFilter:baseFilter;predicate=getCallback(predicate,thisArg,3);return func(collection,predicate)}var find=createFind(baseEach);var findLast=createFind(baseEachRight,true);function findWhere(collection,source){return find(collection,baseMatches(source))}var forEach=createForEach(arrayEach,baseEach);var forEachRight=createForEach(arrayEachRight,baseEachRight);var groupBy=createAggregator(function(result,value,key){if(hasOwnProperty.call(result,key)){result[key].push(value)}else{result[key]=[value]}});function includes(collection,target,fromIndex,guard){var length=collection?getLength(collection):0;if(!isLength(length)){collection=values(collection);length=collection.length}if(typeof fromIndex!="number"||guard&&isIterateeCall(target,fromIndex,guard)){fromIndex=0}else{fromIndex=fromIndex<0?nativeMax(length+fromIndex,0):fromIndex||0}return typeof 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reduce=createReduce(arrayReduce,baseEach);var reduceRight=createReduce(arrayReduceRight,baseEachRight);function reject(collection,predicate,thisArg){var func=isArray(collection)?arrayFilter:baseFilter;predicate=getCallback(predicate,thisArg,3);return func(collection,function(value,index,collection){return!predicate(value,index,collection)})}function sample(collection,n,guard){if(guard?isIterateeCall(collection,n,guard):n==null){collection=toIterable(collection);var length=collection.length;return length>0?collection[baseRandom(0,length-1)]:undefined}var index=-1,result=toArray(collection),length=result.length,lastIndex=length-1;n=nativeMin(n<0?0:+n||0,length);while(++index<n){var rand=baseRandom(index,lastIndex),value=result[rand];result[rand]=result[index];result[index]=value}result.length=n;return result}function shuffle(collection){return sample(collection,POSITIVE_INFINITY)}function size(collection){var length=collection?getLength(collection):0;return isLength(length)?length:keys(collection).length}function some(collection,predicate,thisArg){var func=isArray(collection)?arraySome:baseSome;if(thisArg&&isIterateeCall(collection,predicate,thisArg)){predicate=undefined}if(typeof predicate!="function"||thisArg!==undefined){predicate=getCallback(predicate,thisArg,3)}return func(collection,predicate)}function sortBy(collection,iteratee,thisArg){if(collection==null){return[]}if(thisArg&&isIterateeCall(collection,iteratee,thisArg)){iteratee=undefined}var index=-1;iteratee=getCallback(iteratee,thisArg,3);var result=baseMap(collection,function(value,key,collection){return{criteria:iteratee(value,key,collection),index:++index,value:value}});return baseSortBy(result,compareAscending)}var sortByAll=restParam(function(collection,iteratees){if(collection==null){return[]}var guard=iteratees[2];if(guard&&isIterateeCall(iteratees[0],iteratees[1],guard)){iteratees.length=1}return baseSortByOrder(collection,baseFlatten(iteratees),[])});function sortByOrder(collection,iteratees,orders,guard){if(collection==null){return[]}if(guard&&isIterateeCall(iteratees,orders,guard)){orders=undefined}if(!isArray(iteratees)){iteratees=iteratees==null?[]:[iteratees]}if(!isArray(orders)){orders=orders==null?[]:[orders]}return baseSortByOrder(collection,iteratees,orders)}function where(collection,source){return filter(collection,baseMatches(source))}var now=nativeNow||function(){return(new Date).getTime()};function after(n,func){if(typeof func!="function"){if(typeof n=="function"){var temp=n;n=func;func=temp}else{throw new TypeError(FUNC_ERROR_TEXT)}}n=nativeIsFinite(n=+n)?n:0;return function(){if(--n<1){return func.apply(this,arguments)}}}function ary(func,n,guard){if(guard&&isIterateeCall(func,n,guard)){n=undefined}n=func&&n==null?func.length:nativeMax(+n||0,0);return createWrapper(func,ARY_FLAG,undefined,undefined,undefined,undefined,n)}function before(n,func){var result;if(typeof func!="function"){if(typeof n=="function"){var temp=n;n=func;func=temp}else{throw new TypeError(FUNC_ERROR_TEXT)}}return function(){if(--n>0){result=func.apply(this,arguments)}if(n<=1){func=undefined}return result}}var bind=restParam(function(func,thisArg,partials){var bitmask=BIND_FLAG;if(partials.length){var holders=replaceHolders(partials,bind.placeholder);bitmask|=PARTIAL_FLAG}return createWrapper(func,bitmask,thisArg,partials,holders)});var bindAll=restParam(function(object,methodNames){methodNames=methodNames.length?baseFlatten(methodNames):functions(object);var index=-1,length=methodNames.length;while(++index<length){var key=methodNames[index];object[key]=createWrapper(object[key],BIND_FLAG,object)}return object});var bindKey=restParam(function(object,key,partials){var bitmask=BIND_FLAG|BIND_KEY_FLAG;if(partials.length){var holders=replaceHolders(partials,bindKey.placeholder);bitmask|=PARTIAL_FLAG}return createWrapper(key,bitmask,object,partials,holders)});var curry=createCurry(CURRY_FLAG);var curryRight=createCurry(CURRY_RIGHT_FLAG);function debounce(func,wait,options){var args,maxTimeoutId,result,stamp,thisArg,timeoutId,trailingCall,lastCalled=0,maxWait=false,trailing=true;if(typeof func!="function"){throw new TypeError(FUNC_ERROR_TEXT)}wait=wait<0?0:+wait||0;if(options===true){var leading=true;trailing=false}else if(isObject(options)){leading=!!options.leading;maxWait="maxWait"in options&&nativeMax(+options.maxWait||0,wait);trailing="trailing"in options?!!options.trailing:trailing}function cancel(){if(timeoutId){clearTimeout(timeoutId)}if(maxTimeoutId){clearTimeout(maxTimeoutId)}lastCalled=0;maxTimeoutId=timeoutId=trailingCall=undefined}function complete(isCalled,id){if(id){clearTimeout(id)}maxTimeoutId=timeoutId=trailingCall=undefined;if(isCalled){lastCalled=now();result=func.apply(thisArg,args);if(!timeoutId&&!maxTimeoutId){args=thisArg=undefined}}}function delayed(){var remaining=wait-(now()-stamp);if(remaining<=0||remaining>wait){complete(trailingCall,maxTimeoutId)}else{timeoutId=setTimeout(delayed,remaining)}}function maxDelayed(){complete(trailing,timeoutId)}function debounced(){args=arguments;stamp=now();thisArg=this;trailingCall=trailing&&(timeoutId||!leading);if(maxWait===false){var leadingCall=leading&&!timeoutId}else{if(!maxTimeoutId&&!leading){lastCalled=stamp}var remaining=maxWait-(stamp-lastCalled),isCalled=remaining<=0||remaining>maxWait;if(isCalled){if(maxTimeoutId){maxTimeoutId=clearTimeout(maxTimeoutId)}lastCalled=stamp;result=func.apply(thisArg,args)}else if(!maxTimeoutId){maxTimeoutId=setTimeout(maxDelayed,remaining)}}if(isCalled&&timeoutId){timeoutId=clearTimeout(timeoutId)}else if(!timeoutId&&wait!==maxWait){timeoutId=setTimeout(delayed,wait)}if(leadingCall){isCalled=true;result=func.apply(thisArg,args)}if(isCalled&&!timeoutId&&!maxTimeoutId){args=thisArg=undefined}return result}debounced.cancel=cancel;return debounced}var 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isMatch(object,source,customizer,thisArg){customizer=typeof customizer=="function"?bindCallback(customizer,thisArg,3):undefined;return baseIsMatch(object,getMatchData(source),customizer)}function isNaN(value){return isNumber(value)&&value!=+value}function isNative(value){if(value==null){return false}if(isFunction(value)){return reIsNative.test(fnToString.call(value))}return isObjectLike(value)&&reIsHostCtor.test(value)}function isNull(value){return value===null}function isNumber(value){return typeof value=="number"||isObjectLike(value)&&objToString.call(value)==numberTag}function isPlainObject(value){var Ctor;if(!(isObjectLike(value)&&objToString.call(value)==objectTag&&!isArguments(value))||!hasOwnProperty.call(value,"constructor")&&(Ctor=value.constructor,typeof Ctor=="function"&&!(Ctor instanceof Ctor))){return false}var result;baseForIn(value,function(subValue,key){result=key});return result===undefined||hasOwnProperty.call(value,result)}function isRegExp(value){return 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if(freeExports&&freeModule){if(moduleExports){(freeModule.exports=_)._=_}else{freeExports._=_}}else{root._=_}}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],8:[function(require,module,exports){module.exports=require("./lib/wa-metro")},{"./lib/wa-metro":9}],9:[function(require,module,exports){var work=require("webworkify");function Metro(context,callback){var self=this;if(!context)throw new Error("Context is mandatory");if(!callback)throw new Error("Callback is mandatory");this.context=context;this.steps=16;this.tempo=120;this.callback=callback;this.look_ahead=1;this._step=1;this._scheduler_interval=20;this._next_event_time=0;this._first=true;this._is_running=false;this._worker=work(require("./worker.js"));this._worker.onmessage=function(event){if(event.data==="tick"&&self._is_running){self._scheduler()}};this._worker.postMessage({interval:self._scheduler_interval})}Metro.prototype.start=function(callback){if(this._is_running){console.log("already started");return}this._is_running=true;this._worker.postMessage("start")};Metro.prototype.pause=function(){this._is_running=false;this._worker.postMessage("stop")};Metro.prototype.stop=function(){this._first=true;this._step=1;this._is_running=false;this._worker.postMessage("stop")};Metro.prototype._scheduler=function _scheduler(){var self=this;if(this._step===1&&this._first){this._next_event_time=this.context.currentTime}while(this._next_event_time<this.context.currentTime+this.look_ahead){var event_time_from_scheduled=self._next_event_time-self.context.currentTime;this.callback(self._next_event_time,self._step,event_time_from_scheduled);this._next()}};Metro.prototype._next=function _next(){this._step++;if(this._first){this._next_event_time=this.context.currentTime;this._first=false}if(this._step>this.steps){this._step=1}this._next_event_time+=60/this.tempo*4/this.steps};module.exports=Metro},{"./worker.js":10,webworkify:12}],10:[function(require,module,exports){module.exports=function(self){var interval=25;var timer=null;self.onmessage=function(event){if(event.data==="interval"){interval=event.data.interval}if(event.data==="start"){timer=setInterval(function(){postMessage("tick")},interval)}if(event.data==="stop"){clearInterval(timer);timer=null}}}},{}],11:[function(require,module,exports){"use strict";(function(factory){if(typeof exports==="object"){module.exports=factory()}else if(typeof define==="function"&&define.amd){define(factory)}else{window.WatchJS=factory();window.watch=window.WatchJS.watch;window.unwatch=window.WatchJS.unwatch;window.callWatchers=window.WatchJS.callWatchers}})(function(){var WatchJS={noMore:false},defineWatcher,unwatchOne,callWatchers;var isFunction=function(functionToCheck){var getType={};return functionToCheck&&getType.toString.call(functionToCheck)=="[object Function]"};var isInt=function(x){return x%1===0};var isArray=function(obj){return Object.prototype.toString.call(obj)==="[object Array]"};var isModernBrowser=function(){return Object.defineProperty||Object.prototype.__defineGetter__};var defineGetAndSet=function(obj,propName,getter,setter){try{Object.defineProperty(obj,propName,{get:getter,set:setter,enumerable:true,configurable:true})}catch(error){try{Object.prototype.__defineGetter__.call(obj,propName,getter);Object.prototype.__defineSetter__.call(obj,propName,setter)}catch(error2){throw"watchJS error: browser not supported :/"}}};var defineProp=function(obj,propName,value){try{Object.defineProperty(obj,propName,{enumerable:false,configurable:true,writable:false,value:value})}catch(error){obj[propName]=value}};var watch=function(){if(isFunction(arguments[1])){watchAll.apply(this,arguments)}else if(isArray(arguments[1])){watchMany.apply(this,arguments)}else{watchOne.apply(this,arguments)}};var watchAll=function(obj,watcher,level){if(obj instanceof String||!(obj instanceof Object)&&!isArray(obj)){return}var props=[];if(isArray(obj)){for(var prop=0;prop<obj.length;prop++){props.push(prop)}}else{for(var prop2 in obj){props.push(prop2)}}watchMany(obj,props,watcher,level)};var watchMany=function(obj,props,watcher,level){for(var prop in props){watchOne(obj,props[prop],watcher,level)}};var watchOne=function(obj,prop,watcher,level){if(isFunction(obj[prop])){return}if(obj[prop]!=null&&(level===undefined||level>0)){if(level!==undefined){level--}watchAll(obj[prop],watcher,level)}defineWatcher(obj,prop,watcher)};var unwatch=function(){if(isFunction(arguments[1])){unwatchAll.apply(this,arguments)}else if(isArray(arguments[1])){unwatchMany.apply(this,arguments)}else{unwatchOne.apply(this,arguments)}};var unwatchAll=function(obj,watcher){if(obj instanceof String||!(obj instanceof Object)&&!isArray(obj)){return}var props=[];if(isArray(obj)){for(var prop=0;prop<obj.length;prop++){props.push(prop)}}else{for(var prop2 in obj){props.push(prop2)}}unwatchMany(obj,props,watcher)};var unwatchMany=function(obj,props,watcher){for(var prop2 in props){unwatchOne(obj,props[prop2],watcher)}};if(isModernBrowser()){defineWatcher=function(obj,prop,watcher){var val=obj[prop];watchFunctions(obj,prop);if(!obj.watchers){defineProp(obj,"watchers",{})}if(!obj.watchers[prop]){obj.watchers[prop]=[]}obj.watchers[prop].push(watcher);var getter=function(){return val};var setter=function(newval){var oldval=val;val=newval;if(obj[prop]){watchAll(obj[prop],watcher)}watchFunctions(obj,prop);if(!WatchJS.noMore){if(JSON.stringify(oldval)!==JSON.stringify(newval)){callWatchers(obj,prop,"set",newval,oldval);WatchJS.noMore=false}}};defineGetAndSet(obj,prop,getter,setter)};callWatchers=function(obj,prop,action,newval,oldval){for(var wr in obj.watchers[prop]){if(isInt(wr)){obj.watchers[prop][wr].call(obj,prop,action,newval,oldval)}}};var methodNames=["pop","push","reverse","shift","sort","slice","unshift"];var defineArrayMethodWatcher=function(obj,prop,original,methodName){defineProp(obj[prop],methodName,function(){var response=original.apply(obj[prop],arguments);watchOne(obj,obj[prop]);if(methodName!=="slice"){callWatchers(obj,prop,methodName,arguments)}return response})};var watchFunctions=function(obj,prop){if(!obj[prop]||obj[prop]instanceof String||!isArray(obj[prop])){return}for(var i=methodNames.length,methodName;i--;){methodName=methodNames[i];defineArrayMethodWatcher(obj,prop,obj[prop][methodName],methodName)}};unwatchOne=function(obj,prop,watcher){for(var i in obj.watchers[prop]){var w=obj.watchers[prop][i];if(w==watcher){obj.watchers[prop].splice(i,1)}}}}else{var subjects=[];defineWatcher=function(obj,prop,watcher){subjects.push({obj:obj,prop:prop,serialized:JSON.stringify(obj[prop]),watcher:watcher})};unwatchOne=function(obj,prop,watcher){for(var i in subjects){var subj=subjects[i];if(subj.obj==obj&&subj.prop==prop&&subj.watcher==watcher){subjects.splice(i,1)}}};callWatchers=function(obj,prop,action,value){for(var i in subjects){var subj=subjects[i];if(subj.obj==obj&&subj.prop==prop){subj.watcher.call(obj,prop,action,value)}}};var loop=function(){for(var i in subjects){var subj=subjects[i];var newSer=JSON.stringify(subj.obj[subj.prop]);if(newSer!=subj.serialized){subj.watcher.call(subj.obj,subj.prop,subj.obj[subj.prop],JSON.parse(subj.serialized));subj.serialized=newSer}}};setInterval(loop,50)}WatchJS.watch=watch;WatchJS.unwatch=unwatch;WatchJS.callWatchers=callWatchers;return WatchJS})},{}],12:[function(require,module,exports){var bundleFn=arguments[3];var sources=arguments[4];var cache=arguments[5];var stringify=JSON.stringify;module.exports=function(fn){var keys=[];var wkey;var cacheKeys=Object.keys(cache);for(var i=0,l=cacheKeys.length;i<l;i++){var key=cacheKeys[i];var exp=cache[key].exports;if(exp===fn||exp.default===fn){wkey=key;break}}if(!wkey){wkey=Math.floor(Math.pow(16,8)*Math.random()).toString(16);var wcache={};for(var i=0,l=cacheKeys.length;i<l;i++){var key=cacheKeys[i];wcache[key]=key}sources[wkey]=[Function(["require","module","exports"],"("+fn+")(self)"),wcache]}var skey=Math.floor(Math.pow(16,8)*Math.random()).toString(16);var scache={};scache[wkey]=wkey;sources[skey]=[Function(["require"],"var f = require("+stringify(wkey)+");"+"(f.default ? f.default : f)(self);"),scache];var src="("+bundleFn+")({"+Object.keys(sources).map(function(key){return stringify(key)+":["+sources[key][0]+","+stringify(sources[key][1])+"]"}).join(",")+"},{},["+stringify(skey)+"])";var URL=window.URL||window.webkitURL||window.mozURL||window.msURL;return new Worker(URL.createObjectURL(new Blob([src],{type:"text/javascript"})))}},{}]},{},[1])(1)});
diff --git a/build/demo.js b/build/demo.js
index 1d77a1c..ed2de5a 100644
--- a/build/demo.js
+++ b/build/demo.js
@@ -256,33 +256,46 @@ var Pattern = require('./pattern');
 var Layer = require('./layer');
 var utils = require('./utils');
 
+if (!Array.from) {
+  Array.from = function (object) {
+    'use strict';
+    return [].slice.call(object);
+  };
+}
+
 function Beet(opts) {
   this.context = opts.context;
   this.tempo = opts.tempo || 120;
   this.layers = [];
   var self = this;
 
-  watch(this, 'tempo', function() {
+  watch(this, 'tempo', function () {
     self._change_tempo(self.tempo);
   });
 }
 
-Beet.prototype.layer = function(seq, on, off) {
+Beet.prototype.layer = function (seq, on, off) {
   var layer = new Layer(this.context, this.tempo, seq, on, off);
   return layer;
 };
 
-Beet.prototype.pattern = function(pulses, steps) {
+Beet.prototype.pattern = function (pulses, steps) {
   var pattern = new Pattern(pulses, steps);
   return pattern;
 };
 
-Beet.prototype.add = function(layer) {
-  this.layers.push(layer);
+Beet.prototype.add = function () {
+  var self = this;
+  var array = Array.from(arguments);
+
+  array.forEach(function (layer) {
+    self.layers.push(layer);
+  });
+
   return this;
 };
 
-Beet.prototype.remove = function(layer) {
+Beet.prototype.remove = function (layer) {
   var index = this.layers.indexOf(layer);
   var found = this.layers[index];
   found.metro.stop();
@@ -290,33 +303,33 @@ Beet.prototype.remove = function(layer) {
   return this;
 };
 
-Beet.prototype.start = function(when) {
+Beet.prototype.start = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.start();
     });
   }, start_time * 1000);
   return this;
 };
 
-Beet.prototype.stop = function(when) {
+Beet.prototype.stop = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.stop();
     });
   }, start_time * 1000);
   return this;
 };
 
-Beet.prototype.pause = function(when) {
+Beet.prototype.pause = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.pause();
     });
   }, start_time * 1000);
@@ -325,8 +338,8 @@ Beet.prototype.pause = function(when) {
 
 Beet.prototype.utils = utils;
 
-Beet.prototype._change_tempo = function(value) {
-  this.layers.forEach(function(layer) {
+Beet.prototype._change_tempo = function (value) {
+  this.layers.forEach(function (layer) {
     layer.metro.tempo = value;
   });
 };
@@ -594,6 +607,7 @@ Layer.prototype.stop = function () {
 };
 
 module.exports = Layer;
+
 },{"wa-metro":16,"watchjs":19}],9:[function(require,module,exports){
 var bjork = require('bjorklund');
 var watch = require('watchjs').watch;
diff --git a/examples/basic-polyrhythm/index.html b/examples/basic-polyrhythm/index.html
index 27454d6..f867a8d 100644
--- a/examples/basic-polyrhythm/index.html
+++ b/examples/basic-polyrhythm/index.html
@@ -45,8 +45,7 @@
     }, timeFromScheduled * 1000);
   }
 
-  beet.add(layer);
-  beet.add(layer2);
+  beet.add(layer, layer2);
   beet.start();
 </script>
-</html>
\ No newline at end of file
+</html>
diff --git a/lib/beet.js b/lib/beet.js
index bfcedc0..197f1ea 100644
--- a/lib/beet.js
+++ b/lib/beet.js
@@ -4,33 +4,46 @@ var Pattern = require('./pattern');
 var Layer = require('./layer');
 var utils = require('./utils');
 
+if (!Array.from) {
+  Array.from = function (object) {
+    'use strict';
+    return [].slice.call(object);
+  };
+}
+
 function Beet(opts) {
   this.context = opts.context;
   this.tempo = opts.tempo || 120;
   this.layers = [];
   var self = this;
 
-  watch(this, 'tempo', function() {
+  watch(this, 'tempo', function () {
     self._change_tempo(self.tempo);
   });
 }
 
-Beet.prototype.layer = function(seq, on, off) {
+Beet.prototype.layer = function (seq, on, off) {
   var layer = new Layer(this.context, this.tempo, seq, on, off);
   return layer;
 };
 
-Beet.prototype.pattern = function(pulses, steps) {
+Beet.prototype.pattern = function (pulses, steps) {
   var pattern = new Pattern(pulses, steps);
   return pattern;
 };
 
-Beet.prototype.add = function(layer) {
-  this.layers.push(layer);
+Beet.prototype.add = function () {
+  var self = this;
+  var array = Array.from(arguments);
+
+  array.forEach(function (layer) {
+    self.layers.push(layer);
+  });
+
   return this;
 };
 
-Beet.prototype.remove = function(layer) {
+Beet.prototype.remove = function (layer) {
   var index = this.layers.indexOf(layer);
   var found = this.layers[index];
   found.metro.stop();
@@ -38,33 +51,33 @@ Beet.prototype.remove = function(layer) {
   return this;
 };
 
-Beet.prototype.start = function(when) {
+Beet.prototype.start = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.start();
     });
   }, start_time * 1000);
   return this;
 };
 
-Beet.prototype.stop = function(when) {
+Beet.prototype.stop = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.stop();
     });
   }, start_time * 1000);
   return this;
 };
 
-Beet.prototype.pause = function(when) {
+Beet.prototype.pause = function (when) {
   var self = this;
   var start_time = when || 0;
-  setTimeout(function() {
-    self.layers.forEach(function(layer) {
+  setTimeout(function () {
+    self.layers.forEach(function (layer) {
       layer.pause();
     });
   }, start_time * 1000);
@@ -73,8 +86,8 @@ Beet.prototype.pause = function(when) {
 
 Beet.prototype.utils = utils;
 
-Beet.prototype._change_tempo = function(value) {
-  this.layers.forEach(function(layer) {
+Beet.prototype._change_tempo = function (value) {
+  this.layers.forEach(function (layer) {
     layer.metro.tempo = value;
   });
 };
diff --git a/lib/layer.js b/lib/layer.js
index f3894f9..f3db958 100644
--- a/lib/layer.js
+++ b/lib/layer.js
@@ -41,4 +41,4 @@ Layer.prototype.stop = function () {
   return this;
 };
 
-module.exports = Layer;
\ No newline at end of file
+module.exports = Layer;
diff --git a/package.json b/package.json
index eeada30..02b59e8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "beet.js",
-  "version": "1.6.0",
+  "version": "1.7.0",
   "description": "Polyrhythmic Sequencer for Web Audio API",
   "main": "index.js",
   "scripts": {