hello, thanks for the fast and helpful reply..
hm,
primarily my intension was to build a device which is a more flexible one, eventually also for ableton live.
is it difficult or even impossible to build a device in which you can change the midi-configuration
(in my case: note-numbers) for the buttons? that does not have to be done with buttons on the interface at all costs,
it would be also (but not that) nice to re-asign it by coding,
finally, if it is not possible to implement this, then i have to reconsider my plans :)