message: using unit conversion
diff: @@ -60,13 +60,15 @@ define(["Tone/core/Tone", "Tone/signal/TimelineSignal"], function (Tone) {
  //aproximate it with multiple linear ramps
  time = this.toSeconds(time);
  this.setRampPoint(time);
  + value = this._fromUnits(value);
  +
  //start from previously scheduled value
  var prevEvent = this._events.get(time);
  var segments = 5;
  for (var i = 0; i <= segments; i++){
  var segTime = constant * i + time;
  var rampVal = this._exponentialApproach(prevEvent.time, prevEvent.value, value, constant, segTime);
  - this.linearRampToValueAtTime(rampVal, segTime);
  + this.linearRampToValueAtTime(this._toUnits(rampVal), segTime);
  }
  return this;
  };
  @@ -81,6 +83,8 @@ define(["Tone/core/Tone", "Tone/signal/TimelineSignal"], function (Tone) {
  Tone.TickSignal.prototype.exponentialRampToValueAtTime = function(value, time){
  //aproximate it with multiple linear ramps
  time = this.toSeconds(time);
  + value = this._fromUnits(value);
  +
  //start from previously scheduled value
  var prevEvent = this._events.get(time);
  if (prevEvent === null){
  @@ -94,7 +98,7 @@ define(["Tone/core/Tone", "Tone/signal/TimelineSignal"], function (Tone) {
  for (var i = 0; i <= segments; i++){
  var segTime = segmentDur * i + prevEvent.time;
  var rampVal = this._exponentialInterpolate(prevEvent.time, prevEvent.value, time, value, segTime);
  - this.linearRampToValueAtTime(rampVal, segTime);
  + this.linearRampToValueAtTime(this._toUnits(rampVal), segTime);
  }
  return this;
  };
  