In my quest to make it easier to use the Polybrute for percussion sounds, I thought it would be very handy to have a new voice allocation mode where a single voice would be statically assigned to a fixed keyboard zone, e.g. an octave.
This would allow one to, e.g., use only voice 1 in the first octave, only voice 2 in the second, only voice 3 in the third, etc. With the voice modulation source this would make for six predictably independent sounds that can be played intentionally, e.g. via the sequencer.
This alone doesn’t turn the six voices into six independent instruments, but it would be a big step towards enabling this use case.