Salud!
Dice el manual:
The R3 lets you assign control change numbers to the major parameters that affect
the sound, and control these parameters from an external MIDI sequencer while
you play the tone generator. You can also operate the assigned knobs [1] –[4] or keys
to transmit these control changes to control an external MIDI device.
Así que sí, puedes usar los controles y el teclado.