message: optimizing slice call
  ons/arguments
diff: @@ -79,7 +79,7 @@ define(["Tone/core/Tone"], function (Tone) {
  */
  Tone.Emitter.prototype.emit = function(event){
  if (this._events){
  - var args = Array.prototype.slice.call(arguments, 1);
  + var args = Array.apply(null, arguments).slice(1);
  if (this._events.hasOwnProperty(event)){
  var eventList = this._events[event];
  for (var i = 0, len = eventList.length; i < len; i++){
  