message: using exponential curve in sampler
diff: @@ -121,7 +121,8 @@ define(["Tone/core/Tone", "Tone/instrument/Instrument", "Tone/core/Buffers", "To
  "buffer" : buffer,
  "playbackRate" : Tone.intervalToFrequencyRatio(difference),
  "fadeIn" : this.attack,
  - "fadeOut" : this.release
  + "fadeOut" : this.release,
  + "curve" : "exponential",
  }).connect(this.output);
  source.start(time, 0, buffer.duration, velocity);
  // add it to the active sources
  