There are four types of accordions (of which I know):
bayan, bandoneon, kravtsov and the standard one. Of course, there are much more (
Types of Accordions)
None of these has anything to do with my design (Pashkuli), although by its keys design, kravtsov is somehow very close. The note layout though is completely different. My keyboard is suitable for accordion implementation as well though.
Velocity and aftertouch are available (I have used a heavily modified KORG hardware). MIDI functionality is fully implemented.
I was hoping to implement OSC as well, but my knowledge is not strong enough in that field unfortunately.