!function(t){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).MidiPlayer=t()}}(function(){return function t(e,r,n){function i(o,a){if(!r[o]){if(!e[o]){var u="function"==typeof require&&require;if(!a&&u)return u(o,!0);if(s)return s(o,!0);var h=new Error("Cannot find module '"+o+"'");throw h.code="MODULE_NOT_FOUND",h}var f=r[o]={exports:{}};e[o][0].call(f.exports,function(t){var r=e[o][1][t];return i(r||t)},f,f.exports,t,e,r,n)}return r[o].exports}for(var s="function"==typeof require&&require,o=0;o<n.length;o++)i(n[o]);return i}({1:[function(t,e,r){"use strict";function n(t){var e=t.length;if(e%4>0)throw new Error("Invalid string. Length must be a multiple of 4");return"="===t[e-2]?2:"="===t[e-1]?1:0}function i(t){return o[t>>18&63]+o[t>>12&63]+o[t>>6&63]+o[63&t]}function s(t,e,r){for(var n,s=[],o=e;o<r;o+=3)n=(t[o]<<16)+(t[o+1]<<8)+t[o+2],s.push(i(n));return s.join("")}r.byteLength=function(t){return 3*t.length/4-n(t)},r.toByteArray=function(t){var e,r,i,s,o,h=t.length;s=n(t),o=new u(3*h/4-s),r=s>0?h-4:h;var f=0;for(e=0;e<r;e+=4)i=a[t.charCodeAt(e)]<<18|a[t.charCodeAt(e+1)]<<12|a[t.charCodeAt(e+2)]<<6|a[t.charCodeAt(e+3)],o[f++]=i>>16&255,o[f++]=i>>8&255,o[f++]=255&i;return 2===s?(i=a[t.charCodeAt(e)]<<2|a[t.charCodeAt(e+1)]>>4,o[f++]=255&i):1===s&&(i=a[t.charCodeAt(e)]<<10|a[t.charCodeAt(e+1)]<<4|a[t.charCodeAt(e+2)]>>2,o[f++]=i>>8&255,o[f++]=255&i),o},r.fromByteArray=function(t){for(var e,r=t.length,n=r%3,i="",a=[],u=0,h=r-n;u<h;u+=16383)a.push(s(t,u,u+16383>h?h:u+16383));return 1===n?(e=t[r-1],i+=o[e>>2],i+=o[e<<4&63],i+="=="):2===n&&(e=(t[r-2]<<8)+t[r-1],i+=o[e>>10],i+=o[e>>4&63],i+=o[e<<2&63],i+="="),a.push(i),a.join("")};for(var o=[],a=[],u="undefined"!=typeof Uint8Array?Uint8Array:Array,h="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",f=0,c=h.length;f<c;++f)o[f]=h[f],a[h.charCodeAt(f)]=f;a["-".charCodeAt(0)]=62,a["_".charCodeAt(0)]=63},{}],2:[function(t,e,r){"use strict";function n(t){if(t>_)throw new RangeError("Invalid typed array length");var e=new Uint8Array(t);return e.__proto__=i.prototype,e}function i(t,e,r){if("number"==typeof t){if("string"==typeof e)throw new Error("If encoding is specified then the first argument must be a string");return a(t)}return s(t,e,r)}function s(t,e,r){if("number"==typeof t)throw new TypeError('"value" argument must not be a number');return L(t)?function(t,e,r){if(e<0||t.byteLength<e)throw new RangeError("'offset' is out of bounds");if(t.byteLength<e+(r||0))throw new RangeError("'length' is out of bounds");var n;n=void 0===e&&void 0===r?new Uint8Array(t):void 0===r?new Uint8Array(t,e):new Uint8Array(t,e,r);return n.__proto__=i.prototype,n}(t,e,r):"string"==typeof t?function(t,e){"string"==typeof e&&""!==e||(e="utf8");if(!i.isEncoding(e))throw new TypeError('"encoding" must be a valid string encoding');var r=0|f(t,e),s=n(r),o=s.write(t,e);o!==r&&(s=s.slice(0,o));return s}(t,e):function(t){if(i.isBuffer(t)){var e=0|h(t.length),r=n(e);return 0===r.length?r:(t.copy(r,0,0,e),r)}if(t){if(U(t)||"length"in t)return"number"!=typeof t.length||M(t.length)?n(0):u(t);if("Buffer"===t.type&&Array.isArray(t.data))return u(t.data)}throw new TypeError("First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.")}(t)}function o(t){if("number"!=typeof t)throw new TypeError('"size" argument must be a number');if(t<0)throw new RangeError('"size" argument must not be negative')}function a(t){return o(t),n(t<0?0:0|h(t))}function u(t){for(var e=t.length<0?0:0|h(t.length),r=n(e),i=0;i<e;i+=1)r[i]=255&t[i];return r}function h(t){if(t>=_)throw new RangeError("Attempt to allocate Buffer larger than maximum size: 0x"+_.toString(16)+" bytes");return 0|t}function f(t,e){if(i.isBuffer(t))return t.length;if(U(t)||L(t))return t.byteLength;"string"!=typeof t&&(t=""+t);var r=t.length;if(0===r)return 0;for(var n=!1;;)switch(e){case"ascii":case"latin1":case"binary":return r;case"utf8":case"utf-8":case void 0:return A(t).length;case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return 2*r;case"hex":return r>>>1;case"base64":return C(t).length;default:if(n)return A(t).length;e=(""+e).toLowerCase(),n=!0}}function c(t,e,r){var n=!1;if((void 0===e||e<0)&&(e=0),e>this.length)return"";if((void 0===r||r>this.length)&&(r=this.length),r<=0)return"";if(r>>>=0,e>>>=0,r<=e)return"";for(t||(t="utf8");;)switch(t){case"hex":return function(t,e,r){var n=t.length;(!e||e<0)&&(e=0);(!r||r<0||r>n)&&(r=n);for(var i="",s=e;s<r;++s)i+=function(t){return t<16?"0"+t.toString(16):t.toString(16)}(t[s]);return i}(this,e,r);case"utf8":case"utf-8":return k(this,e,r);case"ascii":return function(t,e,r){var n="";r=Math.min(t.length,r);for(var i=e;i<r;++i)n+=String.fromCharCode(127&t[i]);return n}(this,e,r);case"latin1":case"binary":return function(t,e,r){var n="";r=Math.min(t.length,r);for(var i=e;i<r;++i)n+=String.fromCharCode(t[i]);return n}(this,e,r);case"base64":return function(t,e,r){return 0===e&&r===t.length?N.fromByteArray(t):N.fromByteArray(t.slice(e,r))}(this,e,r);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return function(t,e,r){for(var n=t.slice(e,r),i="",s=0;s<n.length;s+=2)i+=String.fromCharCode(n[s]+256*n[s+1]);return i}(this,e,r);default:if(n)throw new TypeError("Unknown encoding: "+t);t=(t+"").toLowerCase(),n=!0}}function l(t,e,r){var n=t[e];t[e]=t[r],t[r]=n}function p(t,e,r,n,s){if(0===t.length)return-1;if("string"==typeof r?(n=r,r=0):r>2147483647?r=2147483647:r<-2147483648&&(r=-2147483648),r=+r,M(r)&&(r=s?0:t.length-1),r<0&&(r=t.length+r),r>=t.length){if(s)return-1;r=t.length-1}else if(r<0){if(!s)return-1;r=0}if("string"==typeof e&&(e=i.from(e,n)),i.isBuffer(e))return 0===e.length?-1:y(t,e,r,n,s);if("number"==typeof e)return e&=255,"function"==typeof Uint8Array.prototype.indexOf?s?Uint8Array.prototype.indexOf.call(t,e,r):Uint8Array.prototype.lastIndexOf.call(t,e,r):y(t,[e],r,n,s);throw new TypeError("val must be string, number or Buffer")}function y(t,e,r,n,i){function s(t,e){return 1===o?t[e]:t.readUInt16BE(e*o)}var o=1,a=t.length,u=e.length;if(void 0!==n&&("ucs2"===(n=String(n).toLowerCase())||"ucs-2"===n||"utf16le"===n||"utf-16le"===n)){if(t.length<2||e.length<2)return-1;o=2,a/=2,u/=2,r/=2}var h;if(i){var f=-1;for(h=r;h<a;h++)if(s(t,h)===s(e,-1===f?0:h-f)){if(-1===f&&(f=h),h-f+1===u)return f*o}else-1!==f&&(h-=h-f),f=-1}else for(r+u>a&&(r=a-u),h=r;h>=0;h--){for(var c=!0,l=0;l<u;l++)if(s(t,h+l)!==s(e,l)){c=!1;break}if(c)return h}return-1}function g(t,e,r,n){r=Number(r)||0;var i=t.length-r;n?(n=Number(n))>i&&(n=i):n=i;var s=e.length;if(s%2!=0)throw new TypeError("Invalid hex string");n>s/2&&(n=s/2);for(var o=0;o<n;++o){var a=parseInt(e.substr(2*o,2),16);if(M(a))return o;t[r+o]=a}return o}function d(t,e,r,n){return x(A(e,t.length-r),t,r,n)}function v(t,e,r,n){return x(function(t){for(var e=[],r=0;r<t.length;++r)e.push(255&t.charCodeAt(r));return e}(e),t,r,n)}function b(t,e,r,n){return v(t,e,r,n)}function m(t,e,r,n){return x(C(e),t,r,n)}function w(t,e,r,n){return x(function(t,e){for(var r,n,i,s=[],o=0;o<t.length&&!((e-=2)<0);++o)r=t.charCodeAt(o),n=r>>8,i=r%256,s.push(i),s.push(n);return s}(e,t.length-r),t,r,n)}function k(t,e,r){r=Math.min(t.length,r);for(var n=[],i=e;i<r;){var s=t[i],o=null,a=s>239?4:s>223?3:s>191?2:1;if(i+a<=r){var u,h,f,c;switch(a){case 1:s<128&&(o=s);break;case 2:128==(192&(u=t[i+1]))&&(c=(31&s)<<6|63&u)>127&&(o=c);break;case 3:u=t[i+1],h=t[i+2],128==(192&u)&&128==(192&h)&&(c=(15&s)<<12|(63&u)<<6|63&h)>2047&&(c<55296||c>57343)&&(o=c);break;case 4:u=t[i+1],h=t[i+2],f=t[i+3],128==(192&u)&&128==(192&h)&&128==(192&f)&&(c=(15&s)<<18|(63&u)<<12|(63&h)<<6|63&f)>65535&&c<1114112&&(o=c)}}null===o?(o=65533,a=1):o>65535&&(o-=65536,n.push(o>>>10&1023|55296),o=56320|1023&o),n.push(o),i+=a}return function(t){var e=t.length;if(e<=D)return String.fromCharCode.apply(String,t);var r="",n=0;for(;n<e;)r+=String.fromCharCode.apply(String,t.slice(n,n+=D));return r}(n)}function E(t,e,r){if(t%1!=0||t<0)throw new RangeError("offset is not uint");if(t+e>r)throw new RangeError("Trying to access beyond buffer length")}function T(t,e,r,n,s,o){if(!i.isBuffer(t))throw new TypeError('"buffer" argument must be a Buffer instance');if(e>s||e<o)throw new RangeError('"value" argument is out of bounds');if(r+n>t.length)throw new RangeError("Index out of range")}function S(t,e,r,n,i,s){if(r+n>t.length)throw new RangeError("Index out of range");if(r<0)throw new RangeError("Index out of range")}function I(t,e,r,n,i){return e=+e,r>>>=0,i||S(t,0,r,4),P.write(t,e,r,n,23,4),r+4}function B(t,e,r,n,i){return e=+e,r>>>=0,i||S(t,0,r,8),P.write(t,e,r,n,52,8),r+8}function A(t,e){e=e||1/0;for(var r,n=t.length,i=null,s=[],o=0;o<n;++o){if((r=t.charCodeAt(o))>55295&&r<57344){if(!i){if(r>56319){(e-=3)>-1&&s.push(239,191,189);continue}if(o+1===n){(e-=3)>-1&&s.push(239,191,189);continue}i=r;continue}if(r<56320){(e-=3)>-1&&s.push(239,191,189),i=r;continue}r=65536+(i-55296<<10|r-56320)}else i&&(e-=3)>-1&&s.push(239,191,189);if(i=null,r<128){if((e-=1)<0)break;s.push(r)}else if(r<2048){if((e-=2)<0)break;s.push(r>>6|192,63&r|128)}else if(r<65536){if((e-=3)<0)break;s.push(r>>12|224,r>>6&63|128,63&r|128)}else{if(!(r<1114112))throw new Error("Invalid code point");if((e-=4)<0)break;s.push(r>>18|240,r>>12&63|128,r>>6&63|128,63&r|128)}}return s}function C(t){return N.toByteArray(function(t){if((t=t.trim().replace(O,"")).length<2)return"";for(;t.length%4!=0;)t+="=";return t}(t))}function x(t,e,r,n){for(var i=0;i<n&&!(i+r>=e.length||i>=t.length);++i)e[i+r]=t[i];return i}function L(t){return t instanceof ArrayBuffer||null!=t&&null!=t.constructor&&"ArrayBuffer"===t.constructor.name&&"number"==typeof t.byteLength}function U(t){return"function"==typeof ArrayBuffer.isView&&ArrayBuffer.isView(t)}function M(t){return t!=t}var N=t("base64-js"),P=t("ieee754");r.Buffer=i,r.SlowBuffer=function(t){return+t!=t&&(t=0),i.alloc(+t)},r.INSPECT_MAX_BYTES=50;var _=2147483647;r.kMaxLength=_,(i.TYPED_ARRAY_SUPPORT=function(){try{var t=new Uint8Array(1);return t.__proto__={__proto__:Uint8Array.prototype,foo:function(){return 42}},42===t.foo()}catch(t){return!1}}())||"undefined"==typeof console||"function"!=typeof console.error||console.error("This browser lacks typed array (Uint8Array) support which is required by `buffer` v5.x. Use `buffer` v4.x if you require old browser support."),"undefined"!=typeof Symbol&&Symbol.species&&i[Symbol.species]===i&&Object.defineProperty(i,Symbol.species,{value:null,configurable:!0,enumerable:!1,writable:!1}),i.poolSize=8192,i.from=function(t,e,r){return s(t,e,r)},i.prototype.__proto__=Uint8Array.prototype,i.__proto__=Uint8Array,i.alloc=function(t,e,r){return function(t,e,r){return o(t),t<=0?n(t):void 0!==e?"string"==typeof r?n(t).fill(e,r):n(t).fill(e):n(t)}(t,e,r)},i.allocUnsafe=function(t){return a(t)},i.allocUnsafeSlow=function(t){return a(t)},i.isBuffer=function(t){return null!=t&&!0===t._isBuffer},i.compare=function(t,e){if(!i.isBuffer(t)||!i.isBuffer(e))throw new TypeError("Arguments must be Buffers");if(t===e)return 0;for(var r=t.length,n=e.length,s=0,o=Math.min(r,n);s<o;++s)if(t[s]!==e[s]){r=t[s],n=e[s];break}return r<n?-1:n<r?1:0},i.isEncoding=function(t){switch(String(t).toLowerCase()){case"hex":case"utf8":case"utf-8":case"ascii":case"latin1":case"binary":case"base64":case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return!0;default:return!1}},i.concat=function(t,e){if(!Array.isArray(t))throw new TypeError('"list" argument must be an Array of Buffers');if(0===t.length)return i.alloc(0);var r;if(void 0===e)for(e=0,r=0;r<t.length;++r)e+=t[r].length;var n=i.allocUnsafe(e),s=0;for(r=0;r<t.length;++r){var o=t[r];if(!i.isBuffer(o))throw new TypeError('"list" argument must be an Array of Buffers');o.copy(n,s),s+=o.length}return n},i.byteLength=f,i.prototype._isBuffer=!0,i.prototype.swap16=function(){var t=this.length;if(t%2!=0)throw new RangeError("Buffer size must be a multiple of 16-bits");for(var e=0;e<t;e+=2)l(this,e,e+1);return this},i.prototype.swap32=function(){var t=this.length;if(t%4!=0)throw new RangeError("Buffer size must be a multiple of 32-bits");for(var e=0;e<t;e+=4)l(this,e,e+3),l(this,e+1,e+2);return this},i.prototype.swap64=function(){var t=this.length;if(t%8!=0)throw new RangeError("Buffer size must be a multiple of 64-bits");for(var e=0;e<t;e+=8)l(this,e,e+7),l(this,e+1,e+6),l(this,e+2,e+5),l(this,e+3,e+4);return this},i.prototype.toString=function(){var t=this.length;return 0===t?"":0===arguments.length?k(this,0,t):c.apply(this,arguments)},i.prototype.equals=function(t){if(!i.isBuffer(t))throw new TypeError("Argument must be a Buffer");return this===t||0===i.compare(this,t)},i.prototype.inspect=function(){var t="",e=r.INSPECT_MAX_BYTES;return this.length>0&&(t=this.toString("hex",0,e).match(/.{2}/g).join(" "),this.length>e&&(t+=" ... ")),"<Buffer "+t+">"},i.prototype.compare=function(t,e,r,n,s){if(!i.isBuffer(t))throw new TypeError("Argument must be a Buffer");if(void 0===e&&(e=0),void 0===r&&(r=t?t.length:0),void 0===n&&(n=0),void 0===s&&(s=this.length),e<0||r>t.length||n<0||s>this.length)throw new RangeError("out of range index");if(n>=s&&e>=r)return 0;if(n>=s)return-1;if(e>=r)return 1;if(e>>>=0,r>>>=0,n>>>=0,s>>>=0,this===t)return 0;for(var o=s-n,a=r-e,u=Math.min(o,a),h=this.slice(n,s),f=t.slice(e,r),c=0;c<u;++c)if(h[c]!==f[c]){o=h[c],a=f[c];break}return o<a?-1:a<o?1:0},i.prototype.includes=function(t,e,r){return-1!==this.indexOf(t,e,r)},i.prototype.indexOf=function(t,e,r){return p(this,t,e,r,!0)},i.prototype.lastIndexOf=function(t,e,r){return p(this,t,e,r,!1)},i.prototype.write=function(t,e,r,n){if(void 0===e)n="utf8",r=this.length,e=0;else if(void 0===r&&"string"==typeof e)n=e,r=this.length,e=0;else{if(!isFinite(e))throw new Error("Buffer.write(string, encoding, offset[, length]) is no longer supported");e>>>=0,isFinite(r)?(r>>>=0,void 0===n&&(n="utf8")):(n=r,r=void 0)}var i=this.length-e;if((void 0===r||r>i)&&(r=i),t.length>0&&(r<0||e<0)||e>this.length)throw new RangeError("Attempt to write outside buffer bounds");n||(n="utf8");for(var s=!1;;)switch(n){case"hex":return g(this,t,e,r);case"utf8":case"utf-8":return d(this,t,e,r);case"ascii":return v(this,t,e,r);case"latin1":case"binary":return b(this,t,e,r);case"base64":return m(this,t,e,r);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return w(this,t,e,r);default:if(s)throw new TypeError("Unknown encoding: "+n);n=(""+n).toLowerCase(),s=!0}},i.prototype.toJSON=function(){return{type:"Buffer",data:Array.prototype.slice.call(this._arr||this,0)}};var D=4096;i.prototype.slice=function(t,e){var r=this.length;t=~~t,e=void 0===e?r:~~e,t<0?(t+=r)<0&&(t=0):t>r&&(t=r),e<0?(e+=r)<0&&(e=0):e>r&&(e=r),e<t&&(e=t);var n=this.subarray(t,e);return n.__proto__=i.prototype,n},i.prototype.readUIntLE=function(t,e,r){t>>>=0,e>>>=0,r||E(t,e,this.length);for(var n=this[t],i=1,s=0;++s<e&&(i*=256);)n+=this[t+s]*i;return n},i.prototype.readUIntBE=function(t,e,r){t>>>=0,e>>>=0,r||E(t,e,this.length);for(var n=this[t+--e],i=1;e>0&&(i*=256);)n+=this[t+--e]*i;return n},i.prototype.readUInt8=function(t,e){return t>>>=0,e||E(t,1,this.length),this[t]},i.prototype.readUInt16LE=function(t,e){return t>>>=0,e||E(t,2,this.length),this[t]|this[t+1]<<8},i.prototype.readUInt16BE=function(t,e){return t>>>=0,e||E(t,2,this.length),this[t]<<8|this[t+1]},i.prototype.readUInt32LE=function(t,e){return t>>>=0,e||E(t,4,this.length),(this[t]|this[t+1]<<8|this[t+2]<<16)+16777216*this[t+3]},i.prototype.readUInt32BE=function(t,e){return t>>>=0,e||E(t,4,this.length),16777216*this[t]+(this[t+1]<<16|this[t+2]<<8|this[t+3])},i.prototype.readIntLE=function(t,e,r){t>>>=0,e>>>=0,r||E(t,e,this.length);for(var n=this[t],i=1,s=0;++s<e&&(i*=256);)n+=this[t+s]*i;return i*=128,n>=i&&(n-=Math.pow(2,8*e)),n},i.prototype.readIntBE=function(t,e,r){t>>>=0,e>>>=0,r||E(t,e,this.length);for(var n=e,i=1,s=this[t+--n];n>0&&(i*=256);)s+=this[t+--n]*i;return i*=128,s>=i&&(s-=Math.pow(2,8*e)),s},i.prototype.readInt8=function(t,e){return t>>>=0,e||E(t,1,this.length),128&this[t]?-1*(255-this[t]+1):this[t]},i.prototype.readInt16LE=function(t,e){t>>>=0,e||E(t,2,this.length);var r=this[t]|this[t+1]<<8;return 32768&r?4294901760|r:r},i.prototype.readInt16BE=function(t,e){t>>>=0,e||E(t,2,this.length);var r=this[t+1]|this[t]<<8;return 32768&r?4294901760|r:r},i.prototype.readInt32LE=function(t,e){return t>>>=0,e||E(t,4,this.length),this[t]|this[t+1]<<8|this[t+2]<<16|this[t+3]<<24},i.prototype.readInt32BE=function(t,e){return t>>>=0,e||E(t,4,this.length),this[t]<<24|this[t+1]<<16|this[t+2]<<8|this[t+3]},i.prototype.readFloatLE=function(t,e){return t>>>=0,e||E(t,4,this.length),P.read(this,t,!0,23,4)},i.prototype.readFloatBE=function(t,e){return t>>>=0,e||E(t,4,this.length),P.read(this,t,!1,23,4)},i.prototype.readDoubleLE=function(t,e){return t>>>=0,e||E(t,8,this.length),P.read(this,t,!0,52,8)},i.prototype.readDoubleBE=function(t,e){return t>>>=0,e||E(t,8,this.length),P.read(this,t,!1,52,8)},i.prototype.writeUIntLE=function(t,e,r,n){if(t=+t,e>>>=0,r>>>=0,!n){T(this,t,e,r,Math.pow(2,8*r)-1,0)}var i=1,s=0;for(this[e]=255&t;++s<r&&(i*=256);)this[e+s]=t/i&255;return e+r},i.prototype.writeUIntBE=function(t,e,r,n){if(t=+t,e>>>=0,r>>>=0,!n){T(this,t,e,r,Math.pow(2,8*r)-1,0)}var i=r-1,s=1;for(this[e+i]=255&t;--i>=0&&(s*=256);)this[e+i]=t/s&255;return e+r},i.prototype.writeUInt8=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,1,255,0),this[e]=255&t,e+1},i.prototype.writeUInt16LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,65535,0),this[e]=255&t,this[e+1]=t>>>8,e+2},i.prototype.writeUInt16BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,65535,0),this[e]=t>>>8,this[e+1]=255&t,e+2},i.prototype.writeUInt32LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,4294967295,0),this[e+3]=t>>>24,this[e+2]=t>>>16,this[e+1]=t>>>8,this[e]=255&t,e+4},i.prototype.writeUInt32BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,4294967295,0),this[e]=t>>>24,this[e+1]=t>>>16,this[e+2]=t>>>8,this[e+3]=255&t,e+4},i.prototype.writeIntLE=function(t,e,r,n){if(t=+t,e>>>=0,!n){var i=Math.pow(2,8*r-1);T(this,t,e,r,i-1,-i)}var s=0,o=1,a=0;for(this[e]=255&t;++s<r&&(o*=256);)t<0&&0===a&&0!==this[e+s-1]&&(a=1),this[e+s]=(t/o>>0)-a&255;return e+r},i.prototype.writeIntBE=function(t,e,r,n){if(t=+t,e>>>=0,!n){var i=Math.pow(2,8*r-1);T(this,t,e,r,i-1,-i)}var s=r-1,o=1,a=0;for(this[e+s]=255&t;--s>=0&&(o*=256);)t<0&&0===a&&0!==this[e+s+1]&&(a=1),this[e+s]=(t/o>>0)-a&255;return e+r},i.prototype.writeInt8=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,1,127,-128),t<0&&(t=255+t+1),this[e]=255&t,e+1},i.prototype.writeInt16LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,32767,-32768),this[e]=255&t,this[e+1]=t>>>8,e+2},i.prototype.writeInt16BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,2,32767,-32768),this[e]=t>>>8,this[e+1]=255&t,e+2},i.prototype.writeInt32LE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,2147483647,-2147483648),this[e]=255&t,this[e+1]=t>>>8,this[e+2]=t>>>16,this[e+3]=t>>>24,e+4},i.prototype.writeInt32BE=function(t,e,r){return t=+t,e>>>=0,r||T(this,t,e,4,2147483647,-2147483648),t<0&&(t=4294967295+t+1),this[e]=t>>>24,this[e+1]=t>>>16,this[e+2]=t>>>8,this[e+3]=255&t,e+4},i.prototype.writeFloatLE=function(t,e,r){return I(this,t,e,!0,r)},i.prototype.writeFloatBE=function(t,e,r){return I(this,t,e,!1,r)},i.prototype.writeDoubleLE=function(t,e,r){return B(this,t,e,!0,r)},i.prototype.writeDoubleBE=function(t,e,r){return B(this,t,e,!1,r)},i.prototype.copy=function(t,e,r,n){if(r||(r=0),n||0===n||(n=this.length),e>=t.length&&(e=t.length),e||(e=0),n>0&&n<r&&(n=r),n===r)return 0;if(0===t.length||0===this.length)return 0;if(e<0)throw new RangeError("targetStart out of bounds");if(r<0||r>=this.length)throw new RangeError("sourceStart out of bounds");if(n<0)throw new RangeError("sourceEnd out of bounds");n>this.length&&(n=this.length),t.length-e<n-r&&(n=t.length-e+r);var i,s=n-r;if(this===t&&r<e&&e<n)for(i=s-1;i>=0;--i)t[i+e]=this[i+r];else if(s<1e3)for(i=0;i<s;++i)t[i+e]=this[i+r];else Uint8Array.prototype.set.call(t,this.subarray(r,r+s),e);return s},i.prototype.fill=function(t,e,r,n){if("string"==typeof t){if("string"==typeof e?(n=e,e=0,r=this.length):"string"==typeof r&&(n=r,r=this.length),1===t.length){var s=t.charCodeAt(0);s<256&&(t=s)}if(void 0!==n&&"string"!=typeof n)throw new TypeError("encoding must be a string");if("string"==typeof n&&!i.isEncoding(n))throw new TypeError("Unknown encoding: "+n)}else"number"==typeof t&&(t&=255);if(e<0||this.length<e||this.length<r)throw new RangeError("Out of range index");if(r<=e)return this;e>>>=0,r=void 0===r?this.length:r>>>0,t||(t=0);var o;if("number"==typeof t)for(o=e;o<r;++o)this[o]=t;else{var a=i.isBuffer(t)?t:new i(t,n),u=a.length;for(o=0;o<r-e;++o)this[o+e]=a[o%u]}return this};var O=/[^+/0-9A-Za-z-_]/g},{"base64-js":1,ieee754:3}],3:[function(t,e,r){r.read=function(t,e,r,n,i){var s,o,a=8*i-n-1,u=(1<<a)-1,h=u>>1,f=-7,c=r?i-1:0,l=r?-1:1,p=t[e+c];for(c+=l,s=p&(1<<-f)-1,p>>=-f,f+=a;f>0;s=256*s+t[e+c],c+=l,f-=8);for(o=s&(1<<-f)-1,s>>=-f,f+=n;f>0;o=256*o+t[e+c],c+=l,f-=8);if(0===s)s=1-h;else{if(s===u)return o?NaN:1/0*(p?-1:1);o+=Math.pow(2,n),s-=h}return(p?-1:1)*o*Math.pow(2,s-n)},r.write=function(t,e,r,n,i,s){var o,a,u,h=8*s-i-1,f=(1<<h)-1,c=f>>1,l=23===i?Math.pow(2,-24)-Math.pow(2,-77):0,p=n?0:s-1,y=n?1:-1,g=e<0||0===e&&1/e<0?1:0;for(e=Math.abs(e),isNaN(e)||e===1/0?(a=isNaN(e)?1:0,o=f):(o=Math.floor(Math.log(e)/Math.LN2),e*(u=Math.pow(2,-o))<1&&(o--,u*=2),(e+=o+c>=1?l/u:l*Math.pow(2,1-c))*u>=2&&(o++,u/=2),o+c>=f?(a=0,o=f):o+c>=1?(a=(e*u-1)*Math.pow(2,i),o+=c):(a=e*Math.pow(2,c-1)*Math.pow(2,i),o=0));i>=8;t[r+p]=255&a,p+=y,a/=256,i-=8);for(o=o<<i|a,h+=i;h>0;t[r+p]=255&o,p+=y,o/=256,h-=8);t[r+p-y]|=128*g}},{}],4:[function(t,e,r){"use strict";var n={VERSION:"2.0.1",NOTES:[]};!function(){for(var t=[["C"],["C#","Db"],["D"],["D#","Eb"],["E"],["F"],["F#","Gb"],["G"],["G#","Ab"],["A"],["A#","Bb"],["B"]],e=0,r=function(r){t.forEach(function(t){t.forEach(function(t){return n.NOTES[e]=t+r}),e++})},i=-1;i<=9;i++)r(i)}(),r.Constants=n},{}],5:[function(t,e,r){"use strict";var n=t("./player"),i=t("./utils"),s=t("./constants");e.exports={Player:n.Player,Utils:i.Utils,Constants:s.Constants}},{"./constants":4,"./player":6,"./utils":8}],6:[function(t,e,r){"use strict";var n="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),s=t("./utils").Utils,o=t("./track").Track;Uint8Array.prototype.forEach||Object.defineProperty(Uint8Array.prototype,"forEach",{value:Array.prototype.forEach});var a=function(){function e(t,r){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,e),this.sampleRate=5,this.startTime=0,this.buffer=r||null,this.division,this.format,this.setIntervalId=!1,this.tracks=[],this.instruments=[],this.defaultTempo=120,this.tempo=null,this.startTick=0,this.tick=0,this.lastTick=null,this.inLoop=!1,this.totalTicks=0,this.events=[],this.totalEvents=0,this.eventListeners={},"function"==typeof t&&this.on("midiEvent",t)}return i(e,[{key:"loadFile",value:function(e){var r=t("fs");return this.buffer=r.readFileSync(e),this.fileLoaded()}},{key:"loadArrayBuffer",value:function(t){return this.buffer=new Uint8Array(t),this.fileLoaded()}},{key:"loadDataUri",value:function(t){for(var e=s.atob(t.split(",")[1]),r=new Uint8Array(e.length),n=0;n<e.length;n++)r[n]=e.charCodeAt(n);return this.buffer=r,this.fileLoaded()}},{key:"getFilesize",value:function(){return this.buffer?this.buffer.length:0}},{key:"fileLoaded",value:function(){if(!this.validate())throw"Invalid MIDI file; should start with MThd";return this.setTempo(this.defaultTempo).getDivision().getFormat().getTracks().dryRun()}},{key:"validate",value:function(){return"MThd"===s.bytesToLetters(this.buffer.subarray(0,4))}},{key:"getFormat",value:function(){return this.format=s.bytesToNumber(this.buffer.subarray(8,10)),this}},{key:"getTracks",value:function(){this.tracks=[];for(var t=0;t<this.buffer.length;){if("MTrk"==s.bytesToLetters(this.buffer.subarray(t,t+4))){var e=s.bytesToNumber(this.buffer.subarray(t+4,t+8));this.tracks.push(new o(this.tracks.length,this.buffer.subarray(t+8,t+8+e)))}t+=s.bytesToNumber(this.buffer.subarray(t+4,t+8))+8}return this}},{key:"enableTrack",value:function(t){return this.tracks[t-1].enable(),this}},{key:"disableTrack",value:function(t){return this.tracks[t-1].disable(),this}},{key:"getDivision",value:function(){return this.division=s.bytesToNumber(this.buffer.subarray(12,14)),this}},{key:"playLoop",value:function(t){this.inLoop||(this.inLoop=!0,this.tick=this.getCurrentTick(),this.tracks.forEach(function(e){if(!t&&this.endOfFile())this.triggerPlayerEvent("endOfFile"),this.stop();else{var r=e.handleEvent(this.tick,t);t&&r?(r.hasOwnProperty("name")&&"Set Tempo"===r.name&&this.setTempo(r.data),r.hasOwnProperty("name")&&"Program Change"===r.name&&(this.instruments.includes(r.value)||this.instruments.push(r.value))):r&&this.emitEvent(r)}},this),t||this.triggerPlayerEvent("playing",{tick:this.tick}),this.inLoop=!1)}},{key:"setTempo",value:function(t){return this.tempo=t,this}},{key:"setStartTime",value:function(t){this.startTime=t}},{key:"play",value:function(){if(this.isPlaying())throw"Already playing...";return this.startTime||(this.startTime=(new Date).getTime()),this.setIntervalId=setInterval(this.playLoop.bind(this),this.sampleRate),this}},{key:"pause",value:function(){return clearInterval(this.setIntervalId),this.setIntervalId=!1,this.startTick=this.tick,this.startTime=0,this}},{key:"stop",value:function(){return clearInterval(this.setIntervalId),this.setIntervalId=!1,this.startTick=0,this.startTime=0,this.resetTracks(),this}},{key:"skipToTick",value:function(t){return this.stop(),this.startTick=t,this.tracks.forEach(function(e){e.setEventIndexByTick(t)}),this}},{key:"skipToPercent",value:function(t){if(t<0||t>100)throw"Percent must be number between 1 and 100.";return this.skipToTick(Math.round(t/100*this.totalTicks)),this}},{key:"skipToSeconds",value:function(t){var e=this.getSongTime();if(t<0||t>e)throw t+" seconds not within song time of "+e;return this.skipToPercent(t/e*100),this}},{key:"isPlaying",value:function(){return this.setIntervalId>0||"object"===n(this.setIntervalId)}},{key:"dryRun",value:function(){for(this.resetTracks();!this.endOfFile();)this.playLoop(!0);return this.events=this.getEvents(),this.totalEvents=this.getTotalEvents(),this.totalTicks=this.getTotalTicks(),this.startTick=0,this.startTime=0,this.resetTracks(),this.triggerPlayerEvent("fileLoaded",this),this}},{key:"resetTracks",value:function(){return this.tracks.forEach(function(t){return t.reset()}),this}},{key:"getEvents",value:function(){return this.tracks.map(function(t){return t.events})}},{key:"getTotalTicks",value:function(){return Math.max.apply(null,this.tracks.map(function(t){return t.delta}))}},{key:"getTotalEvents",value:function(){return this.tracks.reduce(function(t,e){return{events:{length:t.events.length+e.events.length}}},{events:{length:0}}).events.length}},{key:"getSongTime",value:function(){return this.totalTicks/this.division/this.tempo*60}},{key:"getSongTimeRemaining",value:function(){return Math.round((this.totalTicks-this.tick)/this.division/this.tempo*60)}},{key:"getSongPercentRemaining",value:function(){return Math.round(this.getSongTimeRemaining()/this.getSongTime()*100)}},{key:"bytesProcessed",value:function(){return 14+8*this.tracks.length+this.tracks.reduce(function(t,e){return{pointer:t.pointer+e.pointer}},{pointer:0}).pointer}},{key:"eventsPlayed",value:function(){return this.tracks.reduce(function(t,e){return{eventIndex:t.eventIndex+e.eventIndex}},{eventIndex:0}).eventIndex}},{key:"endOfFile",value:function(){return this.isPlaying()?this.eventsPlayed()==this.totalEvents:this.bytesProcessed()==this.buffer.length}},{key:"getCurrentTick",value:function(){return Math.round(((new Date).getTime()-this.startTime)/1e3*(this.division*(this.tempo/60)))+this.startTick}},{key:"emitEvent",value:function(t){return this.triggerPlayerEvent("midiEvent",t),this}},{key:"on",value:function(t,e){return this.eventListeners.hasOwnProperty(t)||(this.eventListeners[t]=[]),this.eventListeners[t].push(e),this}},{key:"triggerPlayerEvent",value:function(t,e){return this.eventListeners.hasOwnProperty(t)&&this.eventListeners[t].forEach(function(t){return t(e||{})}),this}}]),e}();r.Player=a},{"./track":7,"./utils":8,fs:"fs"}],7:[function(t,e,r){"use strict";var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=t("./constants").Constants,s=t("./utils").Utils,o=function(){function t(e,r){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.enabled=!0,this.eventIndex=0,this.pointer=0,this.lastTick=0,this.lastStatus=null,this.index=e,this.data=r,this.delta=0,this.runningDelta=0,this.events=[]}return n(t,[{key:"reset",value:function(){return this.enabled=!0,this.eventIndex=0,this.pointer=0,this.lastTick=0,this.lastStatus=null,this.delta=0,this.runningDelta=0,this}},{key:"enable",value:function(){return this.enabled=!0,this}},{key:"disable",value:function(){return this.enabled=!1,this}},{key:"setEventIndexByTick",value:function(t){t=t||0;for(var e in this.events)if(this.events[e].tick>=t)return this.eventIndex=e,this}},{key:"getCurrentByte",value:function(){return this.data[this.pointer]}},{key:"getDeltaByteCount",value:function(){for(var t=this.getCurrentByte(),e=1;t>=128;)t=this.data[this.pointer+e],e++;return e}},{key:"getDelta",value:function(){return s.readVarInt(this.data.subarray(this.pointer,this.pointer+this.getDeltaByteCount()))}},{key:"handleEvent",value:function(t,e){if(e=e||!1){var r=t-this.lastTick>=this.getDelta();if(this.pointer<this.data.length&&(e||r)){var n=this.parseEvent();if(this.enabled)return n}}else if(this.events[this.eventIndex]&&this.events[this.eventIndex].tick<=t&&(this.eventIndex++,this.enabled))return this.events[this.eventIndex-1];return null}},{key:"getStringData",value:function(t){this.pointer;var e=s.readVarInt(this.data.subarray(t+2,t+2+1));return s.bytesToLetters(this.data.subarray(t+1+2,t+1+e+2))}},{key:"parseEvent",value:function(){var t=this.pointer+this.getDeltaByteCount(),e={},r=this.getDeltaByteCount();if(e.track=this.index+1,e.delta=this.getDelta(),this.lastTick=this.lastTick+e.delta,this.runningDelta+=e.delta,e.tick=this.runningDelta,e.byteIndex=this.pointer,255==this.data[t]){switch(this.data[t+1]){case 0:e.name="Sequence Number";break;case 1:e.name="Text Event",e.string=this.getStringData(t);break;case 2:e.name="Copyright Notice";break;case 3:e.name="Sequence/Track Name",e.string=this.getStringData(t);break;case 4:e.name="Instrument Name",e.string=this.getStringData(t);break;case 5:e.name="Lyric",e.string=this.getStringData(t);break;case 6:e.name="Marker";break;case 7:e.name="Cue Point",e.string=this.getStringData(t);break;case 9:e.name="Device Name",e.string=this.getStringData(t);break;case 32:e.name="MIDI Channel Prefix";break;case 33:e.name="MIDI Port",e.data=s.bytesToNumber([this.data[t+3]]);break;case 47:e.name="End of Track";break;case 81:e.name="Set Tempo",e.data=Math.round(6e7/s.bytesToNumber(this.data.subarray(t+3,t+6))),this.tempo=e.data;break;case 84:e.name="SMTPE Offset";break;case 88:e.name="Time Signature";break;case 89:e.name="Key Signature";break;case 127:e.name="Sequencer-Specific Meta-event";break;default:e.name="Unknown: "+this.data[t+1].toString(16)}n=this.data[this.pointer+r+2];this.pointer+=r+3+n}else if(240==this.data[t]){e.name="Sysex";var n=this.data[this.pointer+r+1];this.pointer+=r+2+n}else this.data[t]<128?(e.running=!0,e.noteNumber=this.data[t],e.noteName=i.NOTES[this.data[t]],e.velocity=this.data[t+1],this.lastStatus<=143?(e.name="Note off",e.channel=this.lastStatus-128+1):this.lastStatus<=159&&(e.name="Note on",e.channel=this.lastStatus-144+1),this.pointer+=r+2):(this.lastStatus=this.data[t],this.data[t]<=143?(e.name="Note off",e.channel=this.lastStatus-128+1,e.noteNumber=this.data[t+1],e.noteName=i.NOTES[this.data[t+1]],e.velocity=Math.round(this.data[t+2]/127*100),this.pointer+=r+3):this.data[t]<=159?(e.name="Note on",e.channel=this.lastStatus-144+1,e.noteNumber=this.data[t+1],e.noteName=i.NOTES[this.data[t+1]],e.velocity=Math.round(this.data[t+2]/127*100),this.pointer+=r+3):this.data[t]<=175?(e.name="Polyphonic Key Pressure",e.channel=this.lastStatus-160+1,e.note=i.NOTES[this.data[t+1]],e.pressure=event[2],this.pointer+=r+3):this.data[t]<=191?(e.name="Controller Change",e.channel=this.lastStatus-176+1,e.number=this.data[t+1],e.value=this.data[t+2],this.pointer+=r+3):this.data[t]<=207?(e.name="Program Change",e.channel=this.lastStatus-192+1,e.value=this.data[t+1],this.pointer+=r+2):this.data[t]<=223?(e.name="Channel Key Pressure",e.channel=this.lastStatus-208+1,this.pointer+=r+2):this.data[t]<=239?(e.name="Pitch Bend",e.channel=this.lastStatus-224+1,this.pointer+=r+3):e.name="Unknown.  Pointer: "+this.pointer.toString()+" "+t.toString()+" "+this.data.length);return this.delta+=e.delta,this.events.push(e),e}},{key:"endOfTrack",value:function(){return 255==this.data[this.pointer+1]&&47==this.data[this.pointer+2]&&0==this.data[this.pointer+3]}}]),t}();e.exports.Track=o},{"./constants":4,"./utils":8}],8:[function(t,e,r){(function(t){"use strict";var e=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),n=function(){function r(){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,r)}return e(r,null,[{key:"byteToHex",value:function(t){return("0"+t.toString(16)).slice(-2)}},{key:"bytesToHex",value:function(t){var e=[];return t.forEach(function(t){return e.push(r.byteToHex(t))}),e.join("")}},{key:"hexToNumber",value:function(t){return parseInt(t,16)}},{key:"bytesToNumber",value:function(t){return r.hexToNumber(r.bytesToHex(t))}},{key:"bytesToLetters",value:function(t){var e=[];return t.forEach(function(t){return e.push(String.fromCharCode(t))}),e.join("")}},{key:"decToBinary",value:function(t){return(t>>>0).toString(2)}},{key:"readVarInt",value:function(t){var e=0;return t.forEach(function(t){128&t?(e+=127&t,e<<=7):e+=t}),e}},{key:"atob",value:function(t){function e(e){return t.apply(this,arguments)}return e.toString=function(){return t.toString()},e}(function(e){return"function"==typeof atob?atob(e):new t(e,"base64").toString("binary")})}]),r}();r.Utils=n}).call(this,t("buffer").Buffer)},{buffer:2}]},{},[5])(5)});