message: dispose the buffer onended
  addresses
diff: @@ -317,6 +317,14 @@ Tone.BufferSource.prototype._onended = function(){
  this._source.stop(this._stopTime + additionalTail);
  }
  this.onended(this);
  +
  + //dispose the source after it's come to a stop
  + setTimeout(function(){
  + //if it hasn't already been disposed
  + if (this._source){
  + this.dispose();
  + }
  + }.bind(this), additionalTail * 1000 + 100);
  }
  };
  