FOR synthé de synthé by Michel Funken.
design FOR arduino NANO ! (but quite sure it runs for others)
Add 3 pots, to an already made MIDI keyboard. Pots. sends control change 7 (volume); 73 (attack); 72 (release). The program use software midiTHRU to transfert MIDI keyboard messages, read the pot analog value, map the value, and then push control change messages to midi OUT .