ramp exponential won't go below some small value
all frequency values accept a note name as well
toFrequency test
Envelope no longer has an exponent
noting changes
fixed bus infinite recursion.
fixed velocity bug
LFO, changing 'rate'->'frequency'
default args
using AudioToGain instead of Expr
making voices public
volume gets set right away
Threshold - removing deprecated
Fixing/testing microphone dispose method

Fixes #46
Distortion setter
StereoEffect deps clean up