Waveform: sine, sawtooth, pulse (square),
triangle, user, and "user PWM".
Amp: Amplitude of the oscillator.
Tpitch (aftertouch > pitch): The effect of
note velocity and later pressure changes on the
oscillator's pitch.
Pulsewidth, PWM rate, PWM depth. These are
ignored unless the waveform is "pulse" or "user
PWM", in which case they set the base pulsewidth
and the modulation rate and depth.
Trans (transpose): Transposition of the
second oscillator relative to the first (i.e.
the voice's pitch).
Detune: Constant frequency shift of the
second oscillator.
Touch (aftertouch > osc amp): The effect of
note velocity and pressure changes on both
oscillators' amplitude.
