Thanks for these informations. I wanted to ask if there's a way to implement the function and value dials into the midi chart. I would like to use a midi controller to choose different waveforms, filters, lfos, adsr by control change (midi cc). According your instructions it is possible, but my knowledge in programming arduino is none. I had a look at the mentioned codes and found out there's a mistake in the manual. Midi cc for filter cutoff and resonance are exchanged. There's cc for amplifier attack, decay and resonance but not sustain. to Will there be an update in the midi implementation chart? Or can you explain me what to do if I want to programm a midi cc for amplifier sustain and any other function of the dials for the atmegatron. Thanks.