what is sent to module outputs is determined by how they are mapped on the voice assignment page.
by default, module outputs are mapped to notes (pitch and gate): notes from voice #1 will be sent to CV/gate output #1, notes from voice #2 will be sent to CV/gate output #2 etc etc.
it will use whatever outputs are available. on modules that don’t have the equal number of CV and gate outputs you might only get partial note information (pitch only or gate only). on meadowphysics you get 8 voices - but only gates. on white whale you get 2 full voices (pitch and gate) and 2 voices with pitch only. on earthsea you get 1 full voice (pitch and gate) and 3 voices with pitch only.
instead of outputting notes you can also configure module outputs to output CV voltage based on the key (note number) or x/y coordinates of the note pressed. this is a convenient way to use polyES to also provide modulation for something like filter cutoff. as an example, you could set up filter key tracking this way:
- map voice 1 notes (pitch/gate) to output 1
- map voice 1 key to output 2
- connect CV output 2 to filter cutoff
you could then map voice 2 x coordinate to output 3 and y coordinate to output 4, now if you switch to voice 2 your keyboard becomes an x/y pad controller with CVs output on 3&4.
it does not output MIDI.