message: fixing typo in variable name
diff: @@ -321,13 +321,13 @@ define(["Tone/core/Tone", "Tone/signal/Signal", "Tone/core/Timeline"], function
  value = this._initial;
  } else if (before.type === Tone.TimelineSignal.Type.Target){
  var previous = this._events.getBefore(before.time);
  - var previouVal;
  + var previousVal;
  if (previous === null){
  - previouVal = this._initial;
  + previousVal = this._initial;
  } else {
  - previouVal = previous.value;
  + previousVal = previous.value;
  }
  - value = this._exponentialApproach(before.time, previouVal, before.value, before.constant, time);
  + value = this._exponentialApproach(before.time, previousVal, before.value, before.constant, time);
  } else if (after === null){
  value = before.value;
  } else if (after.type === Tone.TimelineSignal.Type.Linear){
  