diff --git a/README.md b/README.md
index 58232c2..55540ef 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ by running `npm remove midi-test --save-dev`.
 
 ```html
 <script src="https://cdn.jsdelivr.net/npm/jzz"></script>       // the latest version, or
-<script src="https://cdn.jsdelivr.net/npm/jzz@1.2.9"></script> // any particular version
+<script src="https://cdn.jsdelivr.net/npm/jzz@1.3.0"></script> // any particular version
 //...
 ```
 
@@ -76,7 +76,7 @@ by running `npm remove midi-test --save-dev`.
 
 ```html
 <script src="https://unpkg.com/jzz"></script>       // the latest version, or
-<script src="https://unpkg.com/jzz@1.2.9"></script> // any particular version
+<script src="https://unpkg.com/jzz@1.3.0"></script> // any particular version
 //...
 ```
 
diff --git a/javascript/JZZ.js b/javascript/JZZ.js
index 8af1d15..7826a27 100644
--- a/javascript/JZZ.js
+++ b/javascript/JZZ.js
@@ -14,7 +14,7 @@
 })(this, function() {
 
   var _scope = typeof window === 'undefined' ? global : window;
-  var _version = '1.2.9';
+  var _version = '1.3.0';
   var i, j, k, m, n;
 
   var _time = Date.now || function () { return new Date().getTime(); };
@@ -595,7 +595,7 @@
   // Web MIDI API
   var _navigator;
   var _requestMIDIAccess;
-  function _tryWebMIDI(sx) {
+  function _findMidiAccess() {
     if (typeof navigator !== 'undefined' && navigator.requestMIDIAccess) {
       _navigator = navigator;
       _requestMIDIAccess = navigator.requestMIDIAccess;
@@ -604,22 +604,44 @@
       }
       catch (err) {}
     }
+  }
+  function _tryWebMIDI() {
+    _findMidiAccess();
     if (_requestMIDIAccess) {
       var self = this;
       var onGood = function(midi) {
-        _initWebMIDI(midi, sx);
+        _initWebMIDI(midi);
         self._resume();
       };
       var onBad = function(msg) {
         self._crash(msg);
       };
-      _requestMIDIAccess.call(_navigator, { sysex: !!sx }).then(onGood, onBad);
+      var opt = {};
+      _requestMIDIAccess.call(_navigator, opt).then(onGood, onBad);
       this._pause();
       return;
     }
     this._break();
   }
-  function _tryWebMIDIsysex() { _tryWebMIDI(true); }
+  function _tryWebMIDIsysex() {
+    _findMidiAccess();
+    if (_requestMIDIAccess) {
+      var self = this;
+      var onGood = function(midi) {
+        _initWebMIDI(midi, true);
+        self._resume();
+      };
+      var onBad = function(msg) {
+        self._crash(msg);
+      };
+      var opt = { sysex:true };
+      _requestMIDIAccess.call(_navigator, opt).then(onGood, onBad);
+      this._pause();
+      return;
+    }
+    this._break();
+  }
+
   // Web-extension
   function _tryCRX() {
     var self = this;
diff --git a/minified/JZZ.js b/minified/JZZ.js
index a4aa694..4d3a5ea 100644
--- a/minified/JZZ.js
+++ b/minified/JZZ.js
@@ -1 +1 @@
-!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define("JZZ",[],n):(t=t||window).JZZ&&t.JZZ.MIDI||(t.JZZ=n())}(this,function(){var o,r,n,i,t="undefined"==typeof window?global:window,e="1.2.9",s=Date.now||function(){return(new Date).getTime()},u=s(),a="undefined"!=typeof performance&&performance.now?function(){return performance.now()}:function(){return s()-u},c=function(t){setTimeout(t,0)};function h(){(this._orig=this)._ready=!1,this._queue=[],this._log=[]}function f(t,n){this._bad?n instanceof Function&&n.apply(this,[new Error(this._err())]):t instanceof Function&&t.apply(this,[this])}function p(t,n){this._bad?t._crash(this._err()):setTimeout(function(){t._resume()},n)}function l(t){this._bad&&t._break(this._err()),t._resume()}function d(t,e,r){t[r]=function(){var t=arguments,n=e._image();return this._push(l,[n]),n[r].apply(n,t)}}function _(t){this._bad||(t instanceof Function?t.apply(this):console.log(t))}function m(t){this._bad&&(t instanceof Function?t.apply(this):console.log(t))}function g(t){this._bad?t._crash(this._err()):(this._break("Closed"),t._resume())}function v(t){if(t.length){var n,e=t.shift();t.length&&(n=this)._slip(m,[function(){v.apply(n,[t])}]);try{this._repair(),e.apply(this)}catch(t){this._break(t.toString())}}else this._break()}function y(t,n){for(var e=0;e<t.length;e++)if(t[e]===n)return;t.push(n)}function b(t,n){for(var e=0;e<t.length;e++)if(t[e]===n)return void t.splice(e,1)}function S(){h.apply(this)}function C(t,n){for(var e in t)t.hasOwnProperty(e)&&n.call(this,e)}function M(n,e,r){if(void 0===e)return M(n,[],[]);if(n instanceof Object){for(var i,t=0;t<e.length;t++)if(e[t]===n)return r[t];return i=n instanceof Array?[]:{},e.push(n),r.push(i),C(n,function(t){i[t]=M(n[t],e,r)}),i}return n}h.prototype._exec=function(){for(;this._ready&&this._queue.length;){var t=this._queue.shift();t[0].apply(this,t[1])}},h.prototype._push=function(t,n){this._queue.push([t,n]),h.prototype._exec.apply(this)},h.prototype._slip=function(t,n){this._queue.unshift([t,n])},h.prototype._pause=function(){this._ready=!1},h.prototype._resume=function(){this._ready=!0,h.prototype._exec.apply(this)},h.prototype._break=function(t){this._orig._bad=!0,this._orig._log.push(t||"Unknown JZZ error")},h.prototype._repair=function(){this._orig._bad=!1},h.prototype._crash=function(t){this._break(t),this._resume()},h.prototype._err=function(){return this._log[this._log.length-1]},h.prototype.log=function(){return M(this._log)},h.prototype._dup=function(){var t=function(){};t.prototype=this._orig;t=new t;return t._ready=!1,t._queue=[],t},h.prototype._image=function(){return this._dup()},h.prototype._thenable=function(){if(this.then)return this;var e=this,t=function(){};t.prototype=e;t=new t;return t.then=function(t,n){return e._push(f,[t,n]),this},t},h.prototype.wait=function(t){if(!t)return this;var n=this._image();return this._push(p,[n,t]),n._thenable()},h.prototype.and=function(t){return this._push(_,[t]),this._thenable()},h.prototype.or=function(t){return this._push(m,[t]),this._thenable()},h.prototype._info={},h.prototype.info=function(){var t=M(this._orig._info);return void 0===t.engine&&(t.engine="none"),void 0===t.sysex&&(t.sysex=!0),t},h.prototype.name=function(){return this.info().name},h.prototype.close=function(){var t=new h;return this._close&&this._push(this._close,[]),this._push(g,[t]),t._thenable()},(S.prototype=new h)._info={name:"JZZ.js",ver:e,version:e,inputs:[],outputs:[]};var x,w=[],B=[],I=[],T=[];function A(){var t,n;for(x._info.engine=H._type,x._info.version=H._version,x._info.sysex=H._sysex,x._info.inputs=[],x._info.outputs=[],w=[],B=[],H._allOuts={},H._allIns={},t=0;t<H._outs.length;t++)((n=H._outs[t]).engine=H)._allOuts[n.name]=n,x._info.outputs.push({id:n.name,name:n.name,manufacturer:n.manufacturer,version:n.version,engine:H._type}),w.push(n);for(t=0;t<Q._outs.length;t++)n=Q._outs[t],x._info.outputs.push({id:n.name,name:n.name,manufacturer:n.manufacturer,version:n.version,engine:n.type}),w.push(n);for(t=0;t<H._ins.length;t++)((n=H._ins[t]).engine=H)._allIns[n.name]=n,x._info.inputs.push({id:n.name,name:n.name,manufacturer:n.manufacturer,version:n.version,engine:H._type}),B.push(n);for(t=0;t<Q._ins.length;t++)n=Q._ins[t],x._info.inputs.push({id:n.name,name:n.name,manufacturer:n.manufacturer,version:n.version,engine:n.type}),B.push(n);if(x._watcher&&x._watcher._handles.length){var e=function(t,n,e,r){if(function(t,n,e,r){var i;if(t.length!=e.length||n.length!=r.length)return!0;for(i=0;i<t.length;i++)if(t[i].name!=e[i].name)return!0;for(i=0;i<n.length;i++)if(n[i].name!=r[i].name)return!0;return!1}(t,n,e,r)){var i,o=[],s=[],u=[],a=[],c={};for(i=0;i<t.length;i++)c[t[i].name]=!0;for(i=0;i<e.length;i++)c[e[i].name]||o.push(e[i]);for(c={},i=0;i<e.length;i++)c[e[i].name]=!0;for(i=0;i<t.length;i++)c[t[i].name]||u.push(t[i]);for(c={},i=0;i<n.length;i++)c[n[i].name]=!0;for(i=0;i<r.length;i++)c[r[i].name]||s.push(r[i]);for(c={},i=0;i<r.length;i++)c[r[i].name]=!0;for(i=0;i<n.length;i++)c[n[i].name]||a.push(n[i]);return{inputs:{added:o,removed:u},outputs:{added:s,removed:a}}}}(T,I,x._info.inputs,x._info.outputs);if(e){for(r=0;r<e.inputs.removed.length;r++)(n=H._inMap[e.inputs.removed[r].name])&&n._closeAll();for(r=0;r<e.outputs.removed.length;r++)(n=H._outMap[e.outputs.removed[r].name])&&n._closeAll();!function(t){for(o=0;o<x._watcher._handles.length;o++)x._watcher._handles[o].apply(x,[t])}(e)}}T=x._info.inputs,I=x._info.outputs}function E(){this._bad||H._refresh(this)}function O(t,n){var e;(t=t instanceof Function?t(n):t)instanceof Array||(t=[t]);for(var r=[],i=[],o=n.slice(),s=r,u=0;u<t.length;u++)if(void 0===t[u])s=i;else if(t[u]instanceof RegExp)for(e=0;e<o.length;e++)t[u].test(o[e].name)&&(s.push(o[e]),o.splice(e,1),e--);else for(e=0;e<o.length;e++)(t[u]+""==e+""||t[u]===o[e].name||t[u]instanceof Object&&t[u].name===o[e].name)&&(s.push(o[e]),o.splice(e,1),e--);return s==r?r:r.concat(o).concat(i)}function F(t,n){n=n instanceof RegExp?"Port matching "+n+" not found":n instanceof Object||void 0===n?"Port not found":'Port "'+n+'" not found';t._crash(n)}function P(t,n){if(this._bad)t._crash(this._err());else{var e=O(n,w);if(e.length){for(var r=0;r<e.length;r++)e[r]=function(t){return function(){t.engine._openOut(this,t.name)}}(e[r]);t._slip(v,[e]),t._resume()}else F(t,n)}}function L(t,n){if(this._bad)t._crash(this._err());else{var e=O(n,B);if(e.length){for(var r=0;r<e.length;r++)e[r]=function(t){return function(){t.engine._openIn(this,t.name)}}(e[r]);t._slip(v,[e]),t._resume()}else F(t,n)}}function 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0===t?this._orig._handles=[]:b(this._orig._handles,t),this._orig._handles.length||H._unwatch()}S.prototype.refresh=function(){return this._push(E,[]),this._thenable()},S.prototype.openMidiOut=function(t){var n=new R;return this._push(E,[]),this._push(P,[n,t]),n._thenable()},S.prototype._openMidiOutNR=function(t){var n=new R;return this._push(P,[n,t]),n._thenable()},S.prototype.openMidiIn=function(t){var n=new R;return this._push(E,[]),this._push(L,[n,t]),n._thenable()},S.prototype._openMidiInNR=function(t){var n=new R;return this._push(L,[n,t]),n._thenable()},S.prototype.onChange=function(t){this._orig._watcher||(this._orig._watcher=new G);var n=this._orig._watcher._image();return this._push(D,[n,t]),n._thenable()},S.prototype._close=function(){H._close()},(R.prototype=new h)._filter=function(t){var n,e;return 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o,s,u=this;this._pause(),document.addEventListener("jazz-midi-msg",function t(){if(o=!0,s=s||document.getElementById("jazz-midi-msg")){var n,e,r=[];try{r=JSON.parse(s.innerText)}catch(t){}s.innerText="",document.removeEventListener("jazz-midi-msg",t),"version"===r[0]?(n=s,r=r[2],H._type="extension",H._version=r,H._sysex=!0,H._pool=[],H._outs=[],H._ins=[],H._inArr=[],H._outArr=[],H._inMap={},H._outMap={},H._outsW=[],H._insW=[],H.refreshClients=[],H._msg=n,H._newPlugin=function(){var t={id:H._pool.length};H._pool.push(t),t.id?document.dispatchEvent(new CustomEvent("jazz-midi",{detail:["new"]})):t.ready=!0},H._newPlugin(),H._refresh=function(t){H.refreshClients.push(t),t._pause(),c(function(){document.dispatchEvent(new CustomEvent("jazz-midi",{detail:["refresh"]}))})},H._openOut=function(t,n){var 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e,r=H._inMap[n];r||(H._pool.length<=H._inArr.length&&H._newPlugin(),e=H._pool[H._inArr.length],((r={name:n,clients:[],info:{name:n,manufacturer:H._allIns[n].manufacturer,version:H._allIns[n].version,type:"MIDI-in",sysex:H._sysex,engine:H._type},_start:function(){document.dispatchEvent(new CustomEvent("jazz-midi",{detail:["openin",e.id,n]}))},_close:function(t){H._closeIn(t)},_closeAll:i}).plugin=e).input=r,H._inArr.push(r),H._inMap[n]=r),y((t._orig._impl=r).clients,t._orig),t._info=r.info,t._close=function(){r._close(this)},r.open||(t._pause(),r.plugin.ready&&r._start())},H._closeOut=function(t){var n=t._impl;b(n.clients,t._orig),!n.clients.length&&n.open&&(n.open=!1,document.dispatchEvent(new CustomEvent("jazz-midi",{detail:["closeout",n.plugin.id]})))},H._closeIn=function(t){var n=t._impl;b(n.clients,t._orig),!n.clients.length&&n.open&&(n.open=!1,document.dispatchEvent(new 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t,n;for(H._outs=[],H._ins=[],t=0;(n=H._main.MidiOutInfo(t)).length;t++)H._outs.push({type:H._type,name:n[0],manufacturer:n[1],version:n[2]});for(t=0;(n=H._main.MidiInInfo(t)).length;t++)H._ins.push({type:H._type,name:n[0],manufacturer:n[1],version:n[2]});A()},H._openOut=function(t,n){var e=H._outMap[n];if(e||(H._pool.length<=H._outArr.length&&H._pool.push(H._newPlugin()),e={name:n,clients:[],info:{name:n,manufacturer:H._allOuts[n].manufacturer,version:H._allOuts[n].version,type:"MIDI-out",sysex:H._sysex,engine:H._type},_close:function(t){H._closeOut(t)},_closeAll:o,_receive:function(t){t.length&&this.plugin.MidiOutRaw(t.slice())}},r=H._pool[H._outArr.length],e.plugin=r,H._outArr.push(e),H._outMap[n]=e),!e.open){var r=e.plugin.MidiOutOpen(n);if(r!==n)return r&&e.plugin.MidiOutClose(),void t._break();e.open=!0}y((t._orig._impl=e).clients,t._orig),t._info=e.info,t._receive=function(t){e._receive(t)},t._close=function(){e._close(this)}},H._openIn=function(t,n){var e,r=H._inMap[n];if(r||(H._pool.length<=H._inArr.length&&H._pool.push(H._newPlugin()),(r={name:n,clients:[],info:{name:n,manufacturer:H._allIns[n].manufacturer,version:H._allIns[n].version,type:"MIDI-in",sysex:H._sysex,engine:H._type},_close:function(t){H._closeIn(t)},_closeAll:o,handle:function(t,n){for(var e=0;e<this.clients.length;e++){var r=ht(n);this.clients[e]._emit(r)}}}).onmidi=(e=r,function(t,n){e.handle(t,n)}),i=H._pool[H._inArr.length],r.plugin=i,H._inArr.push(r),H._inMap[n]=r),!r.open){var i=r.plugin.MidiInOpen(n,r.onmidi);if(i!==n)return i&&r.plugin.MidiInClose(),void t._break();r.open=!0}y((t._orig._impl=r).clients,t._orig),t._info=r.info,t._close=function(){r._close(this)}},H._closeOut=function(t){var n=t._impl;b(n.clients,t._orig),!n.clients.length&&n.open&&(n.open=!1,n.plugin.MidiOutClose())},H._closeIn=function(t){var n=t._impl;b(n.clients,t._orig),!n.clients.length&&n.open&&(n.open=!1,n.plugin.MidiInClose())},H._close=function(){for(var t=0;t<H._inArr.length;t++)H._inArr[t].open&&H._inArr[t].plugin.MidiInClose();H._unwatch()},H._watch=function(){t=t||setInterval(function(){H._refresh()},250)},H._unwatch=function(){t&&clearInterval(t),t=void 0}}function ot(t){return x||(t=t,(x=new S)._options=t,x._push(v,[et(t)]),x.refresh(),x._resume()),x._thenable()}function st(){var t=this instanceof st?this:new st;return st.prototype.reset.apply(t,arguments),t}function ut(){29.97==this.type&&!this.second&&this.frame<2&&this.minute%10&&(this.frame=2)}function at(t){return[[24,25,29.97,30][t[7]>>1&3],(1&t[7])<<4|t[6],t[5]<<4|t[4],t[3]<<4|t[2],t[1]<<4|t[0]]}function ct(t){for(var n,e=[],r=0;r<t.length;r++)e[r]=(n=t[r])<10?"0"+n:n;return e.join(":")}function ht(n){var e=this instanceof ht?this:new ht;if(n instanceof ht)return e._from=n._from.slice(),C(n,function(t){"_from"!=t&&(e[t]=n[t])}),e;if(e._from=[],void 0===n)return e;for(var t=n instanceof 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zt,Nt={a:10,b:11,c:12,d:13,e:14,f:15,A:10,B:11,C:12,D:13,E:14,F:15},jt=0;jt<16;jt++)Nt[jt]=jt;function Ut(t){for(var n=[],e=0;e<t.length;e++)n[e]=t.charCodeAt(e);return n}function Gt(t){return t instanceof Array?function(t){for(var n="",e=0;e<t.length;e++)n+=String.fromCharCode(t[e]);return n}(t):void 0===t?"":""+t}function Vt(t){return(t<16?"0":"")+t.toString(16)}function Zt(t){for(var n=[],e=0;e<t.length;e++)n[e]=Vt(t[e]);return n.join(" ")}function Jt(t){return t.length?": "+Zt(Ut(t)):""}function Wt(t){return t.length?": "+function(t){for(var n="",e=0;e<t.length;e++)"\n"==t[e]?n+="\\n":"\r"==t[e]?n+="\\r":"\t"==t[e]?n+="\\t":t.charCodeAt(e)<32?n+="\\x"+Vt(t.charCodeAt(e)):n+=t[e];return n}(ot.lib.fromUTF8(t)):""}function Ht(){var t=this instanceof Ht?this:new Ht;return t.reset(),arguments.length&&Ht.prototype.setup.apply(t,arguments),t}ht.prototype.getChannel=function(){if(32==this.ff&&1==this.dd.length&&this.dd.charCodeAt(0)<16)return this.dd.charCodeAt(0);var t=this[0];return void 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this.dd=Gt(t),this},ht.prototype.getText=function(){if(void 0!==this.dd)return ot.lib.fromUTF8(this.dd)},ht.prototype.setText=function(t){return this.dd=ot.lib.toUTF8(t),this},ht.prototype.getTempo=function(){if(81==this.ff&&void 0!==this.dd)return 65536*this.dd.charCodeAt(0)+256*this.dd.charCodeAt(1)+this.dd.charCodeAt(2)},ht.prototype.getBPM=function(){var t=this.getTempo();if(t)return 6e7/t},ht.prototype.getTimeSignature=function(){if(88==this.ff&&void 0!==this.dd)return[this.dd.charCodeAt(0),1<<this.dd.charCodeAt(1)]},ht.prototype.getKeySignature=function(){if(89==this.ff&&void 0!==this.dd){var t=this.dd.charCodeAt(0),n=this.dd.charCodeAt(1);if(128&t&&(t-=256),-7<=t&&t<=7&&0<=n&&n<=1)return[t,["Cb","Gb","Db","Ab","Eb","Bb","F","C","G","D","A","E","B","F#","C#","G#","D#","A#"][n?t+10:t+7],!!n]}},ht.prototype.isNoteOn=function(){var t=this[0];return!(void 0===t||t<144||159<t)&&0<this[2]},ht.prototype.isNoteOff=function(){var t=this[0];return!(void 0===t||t<128||159<t)&&(t<144||0==this[2])},ht.prototype.isSysEx=function(){return 240==this[0]},ht.prototype.isFullSysEx=function(){return 240==this[0]&&247==this[this.length-1]},ht.prototype.isSMF=function(){return 0<=this.ff&&this.ff<=127},ht.prototype.isEOT=function(){return 47==this.ff},ht.prototype.isTempo=function(){return 81==this.ff},ht.prototype.isTimeSignature=function(){return 88==this.ff},ht.prototype.isKeySignature=function(){return 89==this.ff},ht.prototype.toString=function(){if(!this.length){if(void 0===this.ff)return"empty";var t="ff"+Vt(this.ff)+" -- ";return 0==this.ff?t+="Sequence Number: "+function(t){for(var n=0,e=0;e<t.length;e++)n=(n<<8)+t.charCodeAt(e);return n}(this.dd):0<this.ff&&this.ff<10?t+=["","Text","Copyright","Sequence Name","Instrument Name","Lyric","Marker","Cue Point","Program Name","Device Name"][this.ff]+Wt(this.dd):32==this.ff?t+="Channel Prefix"+Jt(this.dd):33==this.ff?t+="MIDI Port"+Jt(this.dd):47==this.ff?t+="End of Track"+Jt(this.dd):81==this.ff?t+="Tempo: "+Math.round(100*this.getBPM())/100+" bpm":84==this.ff?t+="SMPTE Offset: "+ct(Ut(this.dd)):88==this.ff?(n=1<<this.dd.charCodeAt(1),t+="Time Signature: "+this.dd.charCodeAt(0)+"/"+n,t+=" "+this.dd.charCodeAt(2)+" "+this.dd.charCodeAt(3)):89==this.ff?(t+="Key Signature: ",(e=this.getKeySignature())?(t+=e[1],e[2]&&(t+=" min")):t+="invalid"):127==this.ff?t+="Sequencer Specific"+Jt(this.dd):t+="SMF"+Jt(this.dd),t}if(t=Zt(this),this[0]<128)return t;if(n={241:"MIDI Time Code",242:"Song Position",243:"Song Select",244:"Undefined",245:"Undefined",246:"Tune request",248:"Timing clock",249:"Undefined",250:"Start",251:"Continue",252:"Stop",253:"Undefined",254:"Active Sensing",255:"Reset"}[this[0]])return t+" -- "+n;var n,e=this[0]>>4;return(n={8:"Note Off",10:"Aftertouch",12:"Program Change",13:"Channel Aftertouch",14:"Pitch Wheel"}[e])?t+" -- "+n:9==e?t+" -- "+(this[2]?"Note On":"Note Off"):11!=e?t:(n={0:"Bank Select MSB",1:"Modulation Wheel 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Time",74:"Brightness",75:"Decay Time",76:"Vibrato Rate",77:"Vibrato Depth",78:"Vibrato Delay",79:"Sound Controller 10",80:"General Purpose Controller 5",81:"General Purpose Controller 6",82:"General Purpose Controller 7",83:"General Purpose Controller 8",84:"Portamento Control",88:"High Resolution Velocity Prefix",91:"Effects 1 Depth",92:"Effects 2 Depth",93:"Effects 3 Depth",94:"Effects 4 Depth",95:"Effects 5 Depth",96:"Data Increment",97:"Data Decrement",98:"Non-Registered Parameter Number LSB",99:"Non-Registered Parameter Number MSB",100:"Registered Parameter Number LSB",101:"Registered Parameter Number MSB",120:"All Sound Off",121:"Reset All Controllers",122:"Local Control On/Off",123:"All Notes Off",124:"Omni Mode Off",125:"Omni Mode On",126:"Mono Mode On",127:"Poly Mode On"}[this[1]],64<=this[1]&&this[1]<=69&&(n+=this[2]<64?" Off":" On"),t+" -- "+(n=n||"Undefined"))},ht.prototype._stamp=function(t){return this._from.push(t._orig||t),this},ht.prototype._unstamp=function(t){return void 0===t?this._from=[]:(t._orig&&(t=t._orig),-1<(t=this._from.indexOf(t))&&this._from.splice(t,1)),this},ht.prototype._stamped=function(t){t._orig&&(t=t._orig);for(var n=0;n<this._from.length;n++)if(this._from[n]==t)return!0;return!1},ot.MIDI=ht,Ht.validate=function(t){var n=t instanceof Array?t:arguments;if(n[0]!=parseInt(n[0])||n[0]<0||14<n[0])throw RangeError("Bad master channel value: "+n[0]);if(n[1]!=parseInt(n[1])||n[1]<0||15<n[0]+n[1])throw RangeError("Bad zone size value: "+n[1])},Ht.prototype.reset=function(){for(var t=0;t<16;t++)this[t]={band:0,master:t}},Ht.prototype.setup=function(t,n){var e;Ht.validate(t,n);var r=t+n;if((this[t].master!=t||this[t].band!=n)&&(n||this[t].band)){for(this[t].band?r<(e=t+this[t].band)&&(r=e):this[t].master==t-1?(e=t-1,r<(e+=this[e].band)&&(r=e),this[t-1]={band:0,master:t-1}):this[t].master!=t&&(e=this[t].master,r<(e+=this[e].band)&&(r=e),this[this[t].master].band=t-this[t].master-1),this[t].master=t,this[t].band=n,e=t+1;e<=t+n;e++)this[e].band&&r<e+this[e].band&&(r=e+this[e].band),this[e]={band:0,master:t};for(;e<=r;e++)this[e]={band:0,master:e}}},Ht.prototype.filter=function(t){var n=t.getChannel();if(!this[n]||!this[this[n].master].band)return t;var e,r,i,o=this[n].master,s=this[o].band;if(void 0!==t._mpe){for(i=256,e=o+1;e<=o+s;e++)if(this[e].notes){for(i>this[e].notes.length&&(i=this[n=e].notes.length),r=0;r<this[e].notes.length;r++)if(this[e].notes[r]==t._mpe){n=e,i=-1;break}}else 0<i&&(n=e,i=0);t.setChannel(n),t._mpe=void 0}return n==o||(t.isNoteOn()?(this[n].notes||(this[n].notes=[]),y(this[n].notes,t.getNote())):t.isNoteOff()&&this[n].notes&&b(this[n].notes,t.getNote())),t},ot.MPE=Ht,(ot.lib={}).now=a,ot.lib.schedule=c,ot.lib.openMidiOut=function(t,n){var e=new R;return n._openOut(e),e._info=n._info(t),e},ot.lib.openMidiIn=function(t,n){var e=new R;return n._openIn(e),e._info=n._info(t),e},ot.lib.registerMidiOut=function(t,n){for(var e=n._info(t),r=0;r<Q._outs.length;r++)if(Q._outs[r].name==e.name)return!1;return e.engine=n,Q._outs.push(e),x&&(A(),x._bad&&(x._repair(),x._resume())),!0},ot.lib.registerMidiIn=function(t,n){for(var e=n._info(t),r=0;r<Q._ins.length;r++)if(Q._ins[r].name==e.name)return!1;return e.engine=n,Q._ins.push(e),x&&(A(),x._bad&&(x._repair(),x._resume())),!0},ot.lib.copyMidiHelpers=kt,ot.lib.getAudioContext=function(){var t,e;return zt||"undefined"==typeof window||(t=window.AudioContext||window.webkitAudioContext)&&((zt=new t)&&!zt.createGain&&(zt.createGain=zt.createGainNode),e=function(){if("running"!=zt.state){zt.resume();var t=zt.createOscillator(),n=zt.createGain();try{n.gain.value=0}catch(t){}n.gain.setTargetAtTime(0,zt.currentTime,.01),t.connect(n),n.connect(zt.destination),t.start||(t.start=t.noteOn),t.stop||(t.stop=t.noteOff),t.start(.1),t.stop(.11)}else document.removeEventListener("touchstart",e),document.removeEventListener("touchend",e),document.removeEventListener("mousedown",e),document.removeEventListener("keydown",e)},document.addEventListener("touchstart",e),document.addEventListener("touchend",e),document.addEventListener("mousedown",e),document.addEventListener("keydown",e),e()),zt};var Qt="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";ot.lib.fromBase64=function(t){var n,e,r,i,o,s,u="",a=0;for(t=t.replace(/[^A-Za-z0-9+/=]/g,"");a<t.length;)r=Qt.indexOf(t.charAt(a++)),n=(15&(i=Qt.indexOf(t.charAt(a++))))<<4|(o=Qt.indexOf(t.charAt(a++)))>>2,e=(3&o)<<6|(s=Qt.indexOf(t.charAt(a++))),u+=String.fromCharCode(r<<2|i>>4),64!=o&&(u+=String.fromCharCode(n)),64!=s&&(u+=String.fromCharCode(e));return u},ot.lib.toBase64=function(t){var n,e,r,i,o=0,s=0,u="",a=[];if(!t)return t;for(;n=(i=t.charCodeAt(o++)<<16|t.charCodeAt(o++)<<8|t.charCodeAt(o++))>>12&63,e=i>>6&63,r=63&i,a[s++]=Qt.charAt(i>>18&63)+Qt.charAt(n)+Qt.charAt(e)+Qt.charAt(r),o<t.length;);var u=a.join(""),c=t.length%3;return c?u.slice(0,c-3)+"===".slice(c):u},ot.lib.fromUTF8=function(t){t=void 0===t?"":""+t;for(var n,e,r="",i=0;i<t.length;i++){if(255<(n=t.charCodeAt(i)))return t;if(n<128)r+=t[i];else if(192==(224&n)){if(n=(31&n)<<6,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;n+=63&e,r+=String.fromCharCode(n)}else if(224==(240&n)){if(n=(15&n)<<12,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(n+=(63&e)<<6,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;n+=63&e,r+=String.fromCharCode(n)}else if(240==(248&n)){if(n=(7&n)<<18,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(n+=(63&e)<<12,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(n+=(63&e)<<6,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(1114111<(n+=63&e))return t;n-=65536,r+=String.fromCharCode(55296+(n>>10)),r+=String.fromCharCode(56320+(1023&n))}}return r},ot.lib.toUTF8=function(t){t=void 0===t?"":""+t;for(var n,e="",r=0;r<t.length;r++)(n=t.charCodeAt(r))<128?e+=t[r]:(n<2048?e+=String.fromCharCode(192+(n>>6)):(n<65536?e+=String.fromCharCode(224+(n>>12)):(e+=String.fromCharCode(240+(n>>18)),e+=String.fromCharCode(128+(n>>12&63))),e+=String.fromCharCode(128+(n>>6&63))),e+=String.fromCharCode(128+(63&n)));return e};var Kt=[],$t={},Xt={},Yt=t.Promise;function tn(t,n,e){this.name=t,this.message=n,this.code=e}function nn(t,n){this.bubbles=!1,this.cancelBubble=!1,this.cancelable=!1,this.currentTarget=n,this.defaultPrevented=!1,this.eventPhase=0,this.path=[],this.port=t,this.returnValue=!0,this.srcElement=n,this.target=n,this.timeStamp=a(),this.type="statechange"}function en(t,n){this.bubbles=!1,this.cancelBubble=!1,this.cancelable=!1,this.currentTarget=t,this.data=n,this.defaultPrevented=!1,this.eventPhase=0,this.path=[],this.receivedTime=a(),this.returnValue=!0,this.srcElement=t,this.target=t,this.timeStamp=this.receivedTime,this.type="midimessage"}function rn(t,n){t&&(t.onstatechange&&t.onstatechange(new nn(t,t)),n.onstatechange&&n.onstatechange(new nn(t,n)))}function on(e,r){var i=this,o=!1,n=null,s=null;this.type="input",this.id=r.id,this.name=r.name,this.manufacturer=r.man,this.version=r.ver,Object.defineProperty(this,"state",{get:function(){return r.connected?"connected":"disconnected"},enumerable:!0}),Object.defineProperty(this,"connection",{get:function(){return o?r.proxy?"open":"pending":"closed"},enumerable:!0}),Object.defineProperty(this,"onmidimessage",{get:function(){return s},set:function(t){if(t instanceof Function){if(s=t,!o)try{i.open()}catch(t){}}else s=null},enumerable:!0}),Object.defineProperty(this,"onstatechange",{get:function(){return n},set:function(t){n=t instanceof Function?t:null},enumerable:!0}),this.open=function(){return new Yt(function(t,n){o?t(i):r.open().then(function(){o||(o=!0,rn(i,e)),t(i)},function(){n(new tn("InvalidAccessError","Port is not available",15))})})},this.close=function(){return new Yt(function(t){o&&(o=!1,r.close(),rn(i,e)),t(i)})},Object.freeze(this)}function sn(t){for(var n,e;t.length;){for(n=0;n<t.length&&!(t[n]==parseInt(t[n])&&128<=t[n]&&t[n]<=255&&247!=t[n]);n++);if(t.splice(0,n),!t.length)return;if(240==t[0]){for(n=1;n<t.length&&247!=t[n];n++);return n==t.length?void 0:t.splice(0,n+1)}if((e=an(t[0])+1)>t.length)return;for(n=1;n<e&&!(t[n]!=parseInt(t[n])||t[n]<0||128<=t[n]);n++);if(n==e)return t.splice(0,n);t.splice(0,n)}}function un(t,n,e,r){var i=this;this.id=t,this.name=n,this.man=e,this.ver=r,this.connected=!0,this.ports=[],this.pending=[],this.proxy=void 0,this.queue=[],this.onmidi=function(t){var n;for(i.queue=i.queue.concat(t.slice()),n=sn(i.queue);n;n=sn(i.queue))for(o=0;o<i.ports.length;o++)i.ports[o][0].onmidimessage&&(240!=n[0]||i.ports[o][1])&&i.ports[o][0].onmidimessage(new en(i,new Uint8Array(n)))}}function an(t){return 128<=t&&t<=191||224<=t&&t<=239||242==t?2:192<=t&&t<=223||241==t||243==t?1:0}"function"!=typeof Yt&&((Yt=function(t){this.executor=t}).prototype.then=function(t,n){this.executor(t="function"!=typeof t?function(){}:t,n="function"!=typeof n?function(){}:n)}),un.prototype.open=function(){var r=this;return new Yt(function(t,n){var e;r.proxy||!r.connected?t():(r.pending.push([t,n]),1==r.pending.length&&ot().openMidiIn(r.name).or(function(){for(e=0;e<r.pending.length;e++)r.pending[e][1]();r.pending=[]}).and(function(){for(r.proxy=this,r.proxy.connect(r.onmidi),e=0;e<r.pending.length;e++)r.pending[e][0]();r.pending=[]}))})},un.prototype.close=function(){var t;if(this.proxy){for(t=0;t<this.ports.length;t++)if("open"==this.ports[t].connection)return;this.proxy.close(),this.proxy=void 0}},un.prototype.disconnect=function(){this.connected=!1,this.proxy&&(this.proxy.close(),this.proxy=void 0)},un.prototype.reconnect=function(){var t,n,e=this,r=[];for(this.connected=!0,t=0;t<Kt.length;t++)"closed"==(n=Kt[t].inputs.get(this.id)).connection?rn(n,Kt[t]):r.push([n,Kt[t]]);r.length&&ot()._openMidiInNR(e.name).or(function(){for(t=0;t<r.length;t++)r[t][0].close()}).and(function(){for(e.proxy=this,e.proxy.connect(e.onmidi),t=0;t<r.length;t++)rn(r[t][0],r[t][1])})};var cn="Failed to execute 'send' on 'MIDIOutput': ";function hn(r,i){var o=this,s=!1,n=null;this.type="output",this.id=i.id,this.name=i.name,this.manufacturer=i.man,this.version=i.ver,Object.defineProperty(this,"state",{get:function(){return i.connected?"connected":"disconnected"},enumerable:!0}),Object.defineProperty(this,"connection",{get:function(){return s?i.proxy?"open":"pending":"closed"},enumerable:!0}),Object.defineProperty(this,"onstatechange",{get:function(){return n},set:function(t){n=t instanceof Function?t:null},enumerable:!0}),this.open=function(){return new Yt(function(t,n){s?t(o):i.open().then(function(){s||(s=!0,rn(o,r)),t(o)},function(){n(new tn("InvalidAccessError","Port is not available",15))})})},this.close=function(){return new Yt(function(t){s&&(s=!1,o.clear(),i.close(),rn(o,r)),t(o)})},this.clear=function(){},this.send=function(t,n){if(!function(t,n){for(var e,r,i=[],o=0;o<t.length;o++)if(t[o]!=parseInt(t[o])||t[o]<0||255<t[o])throw TypeError(cn+t[o]+" is not a UInt8 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0===this._ch?arguments:[this._ch].concat(Array.prototype.slice.call(arguments))));var t,n=Array.prototype.slice.call(arguments);n.length<e.length?n=[this._master].concat(n):(t=Mt(n[0]),n[0]=this._master);n=new pt(e.apply(this,n));return n._mpe=t,this.send(n)}}),C(Dt,function(t){var s;s=Dt[t=t],pt[t]=function(){for(var t=[],n=s.apply(this,void 0===this._ch?arguments:[this._ch].concat(Array.prototype.slice.call(arguments))),e=0;e<n.length;e++)t.push(new pt(n[e]));return t},zt[t]=function(){var t,n,e;if(void 0!==this._master){var r,i=Array.prototype.slice.call(arguments);for(i.length<s.length?i=[this._master].concat(i):(r=Mt(i[0]),i[0]=this._master),n=s.apply(this,i),e=this,t=0;t<n.length;t++){var o=pt(n[t]);o._mpe=r,e=e.send(o)}return e}for(n=s.apply(this,void 0===this._ch?arguments:[this._ch].concat(Array.prototype.slice.call(arguments))),e=this,t=0;t<n.length;t++)e=e.send(n[t]);return e}}),Nt(R);for(var jt,Ut={a:10,b:11,c:12,d:13,e:14,f:15,A:10,B:11,C:12,D:13,E:14,F:15},Gt=0;Gt<16;Gt++)Ut[Gt]=Gt;function Vt(t){for(var n=[],e=0;e<t.length;e++)n[e]=t.charCodeAt(e);return n}function Zt(t){return t instanceof Array?function(t){for(var n="",e=0;e<t.length;e++)n+=String.fromCharCode(t[e]);return n}(t):void 0===t?"":""+t}function Jt(t){return(t<16?"0":"")+t.toString(16)}function Wt(t){for(var n=[],e=0;e<t.length;e++)n[e]=Jt(t[e]);return n.join(" ")}function Ht(t){return t.length?": "+Wt(Vt(t)):""}function Qt(t){return t.length?": "+function(t){for(var n="",e=0;e<t.length;e++)"\n"==t[e]?n+="\\n":"\r"==t[e]?n+="\\r":"\t"==t[e]?n+="\\t":t.charCodeAt(e)<32?n+="\\x"+Jt(t.charCodeAt(e)):n+=t[e];return n}(ut.lib.fromUTF8(t)):""}function Kt(){var t=this instanceof Kt?this:new Kt;return t.reset(),arguments.length&&Kt.prototype.setup.apply(t,arguments),t}pt.prototype.getChannel=function(){if(32==this.ff&&1==this.dd.length&&this.dd.charCodeAt(0)<16)return this.dd.charCodeAt(0);var t=this[0];return void 0===t||t<128||239<t?void 0:15&t},pt.prototype.setChannel=function(t){return void 0===(t=Ut[t])||(32==this.ff?this.dd=String.fromCharCode(t):void 0!==(n=this[0])&&128<=n&&n<=239&&(this[0]=240&n|t)),this;var n},pt.prototype.getNote=function(){var t=this[0];if(!(void 0===t||t<128||175<t))return this[1]},pt.prototype.setNote=function(t){var n=this[0];return void 0===n||n<128||175<n||void 0!==(t=pt.noteValue(t))&&(this[1]=t),this},pt.prototype.getVelocity=function(){var t=this[0];if(!(void 0===t||t<128||159<t))return this[2]},pt.prototype.setVelocity=function(t){var n=this[0];return void 0===n||n<128||159<n||0<=(t=parseInt(t))&&t<128&&(this[2]=t),this},pt.prototype.getSysExId=function(){if(240==this[0])return this[2]},pt.prototype.setSysExId=function(t){return 240==this[0]&&2<this.length&&0<=(t=parseInt(t))&&t<128&&(this[2]=t),this},pt.prototype.getData=function(){if(void 0!==this.dd)return this.dd.toString()},pt.prototype.setData=function(t){return this.dd=Zt(t),this},pt.prototype.getText=function(){if(void 0!==this.dd)return ut.lib.fromUTF8(this.dd)},pt.prototype.setText=function(t){return this.dd=ut.lib.toUTF8(t),this},pt.prototype.getTempo=function(){if(81==this.ff&&void 0!==this.dd)return 65536*this.dd.charCodeAt(0)+256*this.dd.charCodeAt(1)+this.dd.charCodeAt(2)},pt.prototype.getBPM=function(){var t=this.getTempo();if(t)return 6e7/t},pt.prototype.getTimeSignature=function(){if(88==this.ff&&void 0!==this.dd)return[this.dd.charCodeAt(0),1<<this.dd.charCodeAt(1)]},pt.prototype.getKeySignature=function(){if(89==this.ff&&void 0!==this.dd){var t=this.dd.charCodeAt(0),n=this.dd.charCodeAt(1);if(128&t&&(t-=256),-7<=t&&t<=7&&0<=n&&n<=1)return[t,["Cb","Gb","Db","Ab","Eb","Bb","F","C","G","D","A","E","B","F#","C#","G#","D#","A#"][n?t+10:t+7],!!n]}},pt.prototype.isNoteOn=function(){var t=this[0];return!(void 0===t||t<144||159<t)&&0<this[2]},pt.prototype.isNoteOff=function(){var t=this[0];return!(void 0===t||t<128||159<t)&&(t<144||0==this[2])},pt.prototype.isSysEx=function(){return 240==this[0]},pt.prototype.isFullSysEx=function(){return 240==this[0]&&247==this[this.length-1]},pt.prototype.isSMF=function(){return 0<=this.ff&&this.ff<=127},pt.prototype.isEOT=function(){return 47==this.ff},pt.prototype.isTempo=function(){return 81==this.ff},pt.prototype.isTimeSignature=function(){return 88==this.ff},pt.prototype.isKeySignature=function(){return 89==this.ff},pt.prototype.toString=function(){if(!this.length){if(void 0===this.ff)return"empty";var t="ff"+Jt(this.ff)+" -- ";return 0==this.ff?t+="Sequence Number: "+function(t){for(var n=0,e=0;e<t.length;e++)n=(n<<8)+t.charCodeAt(e);return n}(this.dd):0<this.ff&&this.ff<10?t+=["","Text","Copyright","Sequence Name","Instrument Name","Lyric","Marker","Cue Point","Program Name","Device Name"][this.ff]+Qt(this.dd):32==this.ff?t+="Channel Prefix"+Ht(this.dd):33==this.ff?t+="MIDI Port"+Ht(this.dd):47==this.ff?t+="End of Track"+Ht(this.dd):81==this.ff?t+="Tempo: "+Math.round(100*this.getBPM())/100+" bpm":84==this.ff?t+="SMPTE Offset: "+ft(Vt(this.dd)):88==this.ff?(n=1<<this.dd.charCodeAt(1),t+="Time Signature: "+this.dd.charCodeAt(0)+"/"+n,t+=" "+this.dd.charCodeAt(2)+" "+this.dd.charCodeAt(3)):89==this.ff?(t+="Key Signature: ",(e=this.getKeySignature())?(t+=e[1],e[2]&&(t+=" min")):t+="invalid"):127==this.ff?t+="Sequencer Specific"+Ht(this.dd):t+="SMF"+Ht(this.dd),t}if(t=Wt(this),this[0]<128)return t;if(n={241:"MIDI Time Code",242:"Song Position",243:"Song Select",244:"Undefined",245:"Undefined",246:"Tune request",248:"Timing clock",249:"Undefined",250:"Start",251:"Continue",252:"Stop",253:"Undefined",254:"Active Sensing",255:"Reset"}[this[0]])return t+" -- "+n;var n,e=this[0]>>4;return(n={8:"Note Off",10:"Aftertouch",12:"Program Change",13:"Channel Aftertouch",14:"Pitch Wheel"}[e])?t+" -- "+n:9==e?t+" -- "+(this[2]?"Note On":"Note Off"):11!=e?t:(n={0:"Bank Select MSB",1:"Modulation Wheel 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Off":" On"),t+" -- "+(n=n||"Undefined"))},pt.prototype._stamp=function(t){return this._from.push(t._orig||t),this},pt.prototype._unstamp=function(t){return void 0===t?this._from=[]:(t._orig&&(t=t._orig),-1<(t=this._from.indexOf(t))&&this._from.splice(t,1)),this},pt.prototype._stamped=function(t){t._orig&&(t=t._orig);for(var n=0;n<this._from.length;n++)if(this._from[n]==t)return!0;return!1},ut.MIDI=pt,Kt.validate=function(t){var n=t instanceof Array?t:arguments;if(n[0]!=parseInt(n[0])||n[0]<0||14<n[0])throw RangeError("Bad master channel value: "+n[0]);if(n[1]!=parseInt(n[1])||n[1]<0||15<n[0]+n[1])throw RangeError("Bad zone size value: "+n[1])},Kt.prototype.reset=function(){for(var t=0;t<16;t++)this[t]={band:0,master:t}},Kt.prototype.setup=function(t,n){var e;Kt.validate(t,n);var r=t+n;if((this[t].master!=t||this[t].band!=n)&&(n||this[t].band)){for(this[t].band?r<(e=t+this[t].band)&&(r=e):this[t].master==t-1?(e=t-1,r<(e+=this[e].band)&&(r=e),this[t-1]={band:0,master:t-1}):this[t].master!=t&&(e=this[t].master,r<(e+=this[e].band)&&(r=e),this[this[t].master].band=t-this[t].master-1),this[t].master=t,this[t].band=n,e=t+1;e<=t+n;e++)this[e].band&&r<e+this[e].band&&(r=e+this[e].band),this[e]={band:0,master:t};for(;e<=r;e++)this[e]={band:0,master:e}}},Kt.prototype.filter=function(t){var n=t.getChannel();if(!this[n]||!this[this[n].master].band)return t;var e,r,i,o=this[n].master,s=this[o].band;if(void 0!==t._mpe){for(i=256,e=o+1;e<=o+s;e++)if(this[e].notes){for(i>this[e].notes.length&&(i=this[n=e].notes.length),r=0;r<this[e].notes.length;r++)if(this[e].notes[r]==t._mpe){n=e,i=-1;break}}else 0<i&&(n=e,i=0);t.setChannel(n),t._mpe=void 0}return n==o||(t.isNoteOn()?(this[n].notes||(this[n].notes=[]),y(this[n].notes,t.getNote())):t.isNoteOff()&&this[n].notes&&b(this[n].notes,t.getNote())),t},ut.MPE=Kt,(ut.lib={}).now=a,ut.lib.schedule=c,ut.lib.openMidiOut=function(t,n){var e=new R;return n._openOut(e),e._info=n._info(t),e},ut.lib.openMidiIn=function(t,n){var e=new R;return n._openIn(e),e._info=n._info(t),e},ut.lib.registerMidiOut=function(t,n){for(var e=n._info(t),r=0;r<Q._outs.length;r++)if(Q._outs[r].name==e.name)return!1;return e.engine=n,Q._outs.push(e),x&&(A(),x._bad&&(x._repair(),x._resume())),!0},ut.lib.registerMidiIn=function(t,n){for(var e=n._info(t),r=0;r<Q._ins.length;r++)if(Q._ins[r].name==e.name)return!1;return e.engine=n,Q._ins.push(e),x&&(A(),x._bad&&(x._repair(),x._resume())),!0},ut.lib.copyMidiHelpers=Nt,ut.lib.getAudioContext=function(){var t,e;return jt||"undefined"==typeof window||(t=window.AudioContext||window.webkitAudioContext)&&((jt=new t)&&!jt.createGain&&(jt.createGain=jt.createGainNode),e=function(){if("running"!=jt.state){jt.resume();var t=jt.createOscillator(),n=jt.createGain();try{n.gain.value=0}catch(t){}n.gain.setTargetAtTime(0,jt.currentTime,.01),t.connect(n),n.connect(jt.destination),t.start||(t.start=t.noteOn),t.stop||(t.stop=t.noteOff),t.start(.1),t.stop(.11)}else document.removeEventListener("touchstart",e),document.removeEventListener("touchend",e),document.removeEventListener("mousedown",e),document.removeEventListener("keydown",e)},document.addEventListener("touchstart",e),document.addEventListener("touchend",e),document.addEventListener("mousedown",e),document.addEventListener("keydown",e),e()),jt};var $t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";ut.lib.fromBase64=function(t){var n,e,r,i,o,s,u="",a=0;for(t=t.replace(/[^A-Za-z0-9+/=]/g,"");a<t.length;)r=$t.indexOf(t.charAt(a++)),n=(15&(i=$t.indexOf(t.charAt(a++))))<<4|(o=$t.indexOf(t.charAt(a++)))>>2,e=(3&o)<<6|(s=$t.indexOf(t.charAt(a++))),u+=String.fromCharCode(r<<2|i>>4),64!=o&&(u+=String.fromCharCode(n)),64!=s&&(u+=String.fromCharCode(e));return u},ut.lib.toBase64=function(t){var n,e,r,i,o=0,s=0,u="",a=[];if(!t)return t;for(;n=(i=t.charCodeAt(o++)<<16|t.charCodeAt(o++)<<8|t.charCodeAt(o++))>>12&63,e=i>>6&63,r=63&i,a[s++]=$t.charAt(i>>18&63)+$t.charAt(n)+$t.charAt(e)+$t.charAt(r),o<t.length;);var u=a.join(""),c=t.length%3;return c?u.slice(0,c-3)+"===".slice(c):u},ut.lib.fromUTF8=function(t){t=void 0===t?"":""+t;for(var n,e,r="",i=0;i<t.length;i++){if(255<(n=t.charCodeAt(i)))return t;if(n<128)r+=t[i];else if(192==(224&n)){if(n=(31&n)<<6,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;n+=63&e,r+=String.fromCharCode(n)}else if(224==(240&n)){if(n=(15&n)<<12,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(n+=(63&e)<<6,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;n+=63&e,r+=String.fromCharCode(n)}else if(240==(248&n)){if(n=(7&n)<<18,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(n+=(63&e)<<12,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(n+=(63&e)<<6,++i>=t.length)return t;if(128!=(192&(e=t.charCodeAt(i))))return t;if(1114111<(n+=63&e))return t;n-=65536,r+=String.fromCharCode(55296+(n>>10)),r+=String.fromCharCode(56320+(1023&n))}}return r},ut.lib.toUTF8=function(t){t=void 0===t?"":""+t;for(var n,e="",r=0;r<t.length;r++)(n=t.charCodeAt(r))<128?e+=t[r]:(n<2048?e+=String.fromCharCode(192+(n>>6)):(n<65536?e+=String.fromCharCode(224+(n>>12)):(e+=String.fromCharCode(240+(n>>18)),e+=String.fromCharCode(128+(n>>12&63))),e+=String.fromCharCode(128+(n>>6&63))),e+=String.fromCharCode(128+(63&n)));return e};var Xt=[],Yt={},tn={},nn=t.Promise;function en(t,n,e){this.name=t,this.message=n,this.code=e}function rn(t,n){this.bubbles=!1,this.cancelBubble=!1,this.cancelable=!1,this.currentTarget=n,this.defaultPrevented=!1,this.eventPhase=0,this.path=[],this.port=t,this.returnValue=!0,this.srcElement=n,this.target=n,this.timeStamp=a(),this.type="statechange"}function on(t,n){this.bubbles=!1,this.cancelBubble=!1,this.cancelable=!1,this.currentTarget=t,this.data=n,this.defaultPrevented=!1,this.eventPhase=0,this.path=[],this.receivedTime=a(),this.returnValue=!0,this.srcElement=t,this.target=t,this.timeStamp=this.receivedTime,this.type="midimessage"}function sn(t,n){t&&(t.onstatechange&&t.onstatechange(new rn(t,t)),n.onstatechange&&n.onstatechange(new rn(t,n)))}function un(e,r){var i=this,o=!1,n=null,s=null;this.type="input",this.id=r.id,this.name=r.name,this.manufacturer=r.man,this.version=r.ver,Object.defineProperty(this,"state",{get:function(){return r.connected?"connected":"disconnected"},enumerable:!0}),Object.defineProperty(this,"connection",{get:function(){return o?r.proxy?"open":"pending":"closed"},enumerable:!0}),Object.defineProperty(this,"onmidimessage",{get:function(){return s},set:function(t){if(t instanceof Function){if(s=t,!o)try{i.open()}catch(t){}}else s=null},enumerable:!0}),Object.defineProperty(this,"onstatechange",{get:function(){return n},set:function(t){n=t instanceof Function?t:null},enumerable:!0}),this.open=function(){return new nn(function(t,n){o?t(i):r.open().then(function(){o||(o=!0,sn(i,e)),t(i)},function(){n(new en("InvalidAccessError","Port is not available",15))})})},this.close=function(){return new nn(function(t){o&&(o=!1,r.close(),sn(i,e)),t(i)})},Object.freeze(this)}function an(t){for(var n,e;t.length;){for(n=0;n<t.length&&!(t[n]==parseInt(t[n])&&128<=t[n]&&t[n]<=255&&247!=t[n]);n++);if(t.splice(0,n),!t.length)return;if(240==t[0]){for(n=1;n<t.length&&247!=t[n];n++);return n==t.length?void 0:t.splice(0,n+1)}if((e=hn(t[0])+1)>t.length)return;for(n=1;n<e&&!(t[n]!=parseInt(t[n])||t[n]<0||128<=t[n]);n++);if(n==e)return t.splice(0,n);t.splice(0,n)}}function cn(t,n,e,r){var i=this;this.id=t,this.name=n,this.man=e,this.ver=r,this.connected=!0,this.ports=[],this.pending=[],this.proxy=void 0,this.queue=[],this.onmidi=function(t){var n;for(i.queue=i.queue.concat(t.slice()),n=an(i.queue);n;n=an(i.queue))for(o=0;o<i.ports.length;o++)i.ports[o][0].onmidimessage&&(240!=n[0]||i.ports[o][1])&&i.ports[o][0].onmidimessage(new on(i,new Uint8Array(n)))}}function hn(t){return 128<=t&&t<=191||224<=t&&t<=239||242==t?2:192<=t&&t<=223||241==t||243==t?1:0}"function"!=typeof nn&&((nn=function(t){this.executor=t}).prototype.then=function(t,n){this.executor(t="function"!=typeof t?function(){}:t,n="function"!=typeof n?function(){}:n)}),cn.prototype.open=function(){var r=this;return new nn(function(t,n){var e;r.proxy||!r.connected?t():(r.pending.push([t,n]),1==r.pending.length&&ut().openMidiIn(r.name).or(function(){for(e=0;e<r.pending.length;e++)r.pending[e][1]();r.pending=[]}).and(function(){for(r.proxy=this,r.proxy.connect(r.onmidi),e=0;e<r.pending.length;e++)r.pending[e][0]();r.pending=[]}))})},cn.prototype.close=function(){var t;if(this.proxy){for(t=0;t<this.ports.length;t++)if("open"==this.ports[t].connection)return;this.proxy.close(),this.proxy=void 0}},cn.prototype.disconnect=function(){this.connected=!1,this.proxy&&(this.proxy.close(),this.proxy=void 0)},cn.prototype.reconnect=function(){var t,n,e=this,r=[];for(this.connected=!0,t=0;t<Xt.length;t++)"closed"==(n=Xt[t].inputs.get(this.id)).connection?sn(n,Xt[t]):r.push([n,Xt[t]]);r.length&&ut()._openMidiInNR(e.name).or(function(){for(t=0;t<r.length;t++)r[t][0].close()}).and(function(){for(e.proxy=this,e.proxy.connect(e.onmidi),t=0;t<r.length;t++)sn(r[t][0],r[t][1])})};var fn="Failed to execute 'send' on 'MIDIOutput': ";function pn(r,i){var o=this,s=!1,n=null;this.type="output",this.id=i.id,this.name=i.name,this.manufacturer=i.man,this.version=i.ver,Object.defineProperty(this,"state",{get:function(){return i.connected?"connected":"disconnected"},enumerable:!0}),Object.defineProperty(this,"connection",{get:function(){return s?i.proxy?"open":"pending":"closed"},enumerable:!0}),Object.defineProperty(this,"onstatechange",{get:function(){return n},set:function(t){n=t instanceof Function?t:null},enumerable:!0}),this.open=function(){return new nn(function(t,n){s?t(o):i.open().then(function(){s||(s=!0,sn(o,r)),t(o)},function(){n(new en("InvalidAccessError","Port is not available",15))})})},this.close=function(){return new nn(function(t){s&&(s=!1,o.clear(),i.close(),sn(o,r)),t(o)})},this.clear=function(){},this.send=function(t,n){if(!function(t,n){for(var e,r,i=[],o=0;o<t.length;o++)if(t[o]!=parseInt(t[o])||t[o]<0||255<t[o])throw TypeError(fn+t[o]+" is not a UInt8 value.");for(o=e=0;o<t.length;o++)if(e){if(127<t[o])throw TypeError(fn+"Unexpected status byte at index "+o+" ("+t[o]+").");r.push(t[o]),e--}else{if(t[o]<128)throw TypeError(fn+"Running status is not allowed at index "+o+" ("+t[o]+").");if(247==t[o])throw TypeError(fn+"Unexpected end of system exclusive message at index "+o+" ("+t[o]+").");if(r=[t[o]],i.push(r),240==t[o]){if(!n)throw new en("InvalidAccessError",fn+"System exclusive messag is not allowed at index "+o+" ("+t[o]+").",15);for(e=-1;o<t.length;o++)if(r.push(t[o]),247==t[o]){e=0;break}}else e=hn(t[o])}if(e)throw TypeError(fn+"Message is incomplete")}(t,r.sysexEnabled),!i.connected)throw new en("InvalidStateError","Port is not connected",11);var e;s?(e=a())<n?setTimeout(function(){i.proxy.send(t)},n-e):i.proxy.send(t):this.open().then(function(){o.send(t,n)})},Object.freeze(this)}function ln(t,n,e,r){this.id=t,this.name=n,this.man=e,this.ver=r,this.connected=!0,this.ports=[],this.pending=[],this.proxy=void 0}function dn(r){this.has=function(t){return r.hasOwnProperty(t)&&r[t].connected},this.keys=function(){try{var t,n=new Map;for(t in r)this.has(t)&&n.set(t,this.get(t));return n.keys()}catch(t){}},this.values=function(){try{var t,n=new Map;for(t in r)this.has(t)&&n.set(t,this.get(t));return n.values()}catch(t){}},this.entries=function(){try{var t,n=new Map;for(t in r)this.has(t)&&n.set(t,this.get(t));return n.entries()}catch(t){}},this.forEach=function(t,n){for(var e in void 0===n&&(n=this),r)this.has(e)&&t.call(n,this.get(e),e,this)},Object.defineProperty(this,"size",{get:function(){var t,n=0;for(t in r)this.has(t)&&n++;return n},enumerable:!0})}function _n(n,e){this.get=function(t){if(tn.hasOwnProperty(t)&&tn[t].connected)return e[t]||(e[t]=new un(n,tn[t]),tn[t].ports.push([e[t],n.sysexEnabled])),e[t]},Object.freeze(this)}function mn(n,e){this.get=function(t){if(Yt.hasOwnProperty(t)&&Yt[t].connected)return e[t]||(e[t]=new pn(n,Yt[t]),Yt[t].ports.push([e[t],n.sysexEnabled])),e[t]},Object.freeze(this)}function gn(t){for(var n,e,r,i=0;i<t.inputs.added.length;i++)e=t.inputs.added[i],tn.hasOwnProperty(e.id)||(tn[e.id]=new cn(e.id,e.name,e.manufacturer,e.version)),tn[e.id].reconnect();for(i=0;i<t.outputs.added.length;i++)e=t.outputs.added[i],Yt.hasOwnProperty(e.id)||(Yt[e.id]=new ln(e.id,e.name,e.manufacturer,e.version)),Yt[e.id].reconnect();for(i=0;i<t.inputs.removed.length;i++)if(e=t.inputs.removed[i],tn.hasOwnProperty(e.id)){for(r=[],n=0;n<Xt.length;n++)r.push([Xt[n].inputs.get(e.id),Xt[n]]);for(tn[e.id].disconnect(),n=0;n<r.length;n++)sn(r[n][0],r[n][1])}for(i=0;i<t.outputs.removed.length;i++)if(e=t.outputs.removed[i],Yt.hasOwnProperty(e.id)){for(r=[],n=0;n<Xt.length;n++)r.push([Xt[n].outputs.get(e.id),Xt[n]]);for(Yt[e.id].disconnect(),n=0;n<r.length;n++)sn(r[n][0],r[n][1])}}function vn(t){var n,e=null;this.sysexEnabled=t,this.inputs=new _n(this,{}),this.outputs=new mn(this,{}),Object.defineProperty(this,"onstatechange",{get:function(){return e},set:function(t){e=t instanceof Function?t:null},enumerable:!0}),Object.freeze(this);for(var r=x._info,i=0;i<r.inputs.length;i++)n=r.inputs[i],tn.hasOwnProperty(n.id)||(tn[n.id]=new cn(n.id,n.name,n.manufacturer,n.version));for(i=0;i<r.outputs.length;i++)n=r.outputs[i],Yt.hasOwnProperty(n.id)||(Yt[n.id]=new ln(n.id,n.name,n.manufacturer,n.version));Xt.length||ut().onChange(gn),Xt.push(this)}return ln.prototype.open=function(){var r=this;return new nn(function(t,n){var e;r.proxy||!r.connected?t():(r.pending.push([t,n]),1==r.pending.length&&ut().openMidiOut(r.name).or(function(){for(e=0;e<r.pending.length;e++)r.pending[e][1]();r.pending=[]}).and(function(){for(r.proxy=this,e=0;e<r.pending.length;e++)r.pending[e][0]();r.pending=[]}))})},ln.prototype.close=function(){var t;if(this.proxy){for(t=0;t<this.ports.length;t++)if("open"==this.ports[t].connection)return;this.proxy.close(),this.proxy=void 0}},ln.prototype.disconnect=function(){this.connected=!1,this.proxy&&(this.proxy.close(),this.proxy=void 0)},ln.prototype.reconnect=function(){var t,n,e=this,r=[];for(this.connected=!0,t=0;t<Xt.length;t++)"closed"==(n=Xt[t].outputs.get(this.id)).connection?sn(n,Xt[t]):r.push([n,Xt[t]]);r.length&&ut()._openMidiOutNR(e.name).or(function(){for(t=0;t<r.length;t++)r[t][0].close()}).and(function(){for(e.proxy=this,t=0;t<r.length;t++)sn(r[t][0],r[t][1])})},(_n.prototype=new dn(tn)).constructor=_n,(mn.prototype=new dn(Yt)).constructor=mn,ut.requestMIDIAccess=function(r){return new nn(function(n,e){ut.JZZ(r).or(function(){}).and(function(){var t=!(!r||!r.sysex);t&&!this.info().sysex?e(new en("SecurityError","Sysex is not allowed",18)):(t=new vn(t),n(t))})})},"undefined"==typeof navigator||navigator.requestMIDIAccess||(navigator.requestMIDIAccess=ut.requestMIDIAccess),ut.close=function(){H._close&&H._close()},ut});
\ No newline at end of file
diff --git a/package.json b/package.json
index 5aee0f7..13c3616 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jzz",
-  "version": "1.2.9",
+  "version": "1.3.0",
   "description": "MIDI library for Node.js and web-browsers",
   "main": "javascript/JZZ.js",
   "scripts": {
@@ -21,14 +21,14 @@
     "jazz-midi": "^1.7.4"
   },
   "devDependencies": {
-    "eslint": "^7.24.0",
-    "grunt": "^1.3.0",
+    "eslint": "^7.25.0",
+    "grunt": "^1.4.0",
     "grunt-contrib-jshint": "^3.0.0",
     "grunt-contrib-uglify": "^5.0.1",
     "midi-test": "^1.1.5",
     "mocha": "^8.3.2",
     "nyc": "^15.1.0",
-    "web-midi-test": "^1.1.3"
+    "web-midi-test": "^1.1.4"
   },
   "runkitExampleFilename": "runkit.js",
   "repository": {