All effects have a 'set' method

#16
_defaults -> defaults

made it not private
feedback wasn't connect to the gain AudioParam
first PolySynth version
added qwerty-hancock for examples

#3
Note values should be JSONable
switching to releases instead of versions
renamed src to docs
added detune

this is separate from unison detuning
Tone.DuoSynth first commit
setVolume in db now
small ramp on vibrato delay
borrows setVolume from Tone.Source
Started widgets for GUI controls

#3
styled envelope example

#3
Audio-Rate Math Example

#3