Hi and thanks for answering :slight_smile:

The AK is connected via Midi only.

I have not been pressing the MIDI EXT button at all, i’ve just been moving to a different channel in cubase to play my sampler or other vsts. They play but so does the AK even if its a different midi channel to the AK’s track.

Should I press MIDI EXT each time I switch channels to play a different instrument?