Bit of a thread hijack, but the answer will lie in the manual of your integra. I have a similar issue with my virus TI, as in sequencer mode it responds to every midi channel, i mute the channels i don’t want to use on the virus. You’ll need a version of that for your integra. You may be able to filter certain channels, or disable them completely. You’ll also need to experiement with combinations of your setup to find what works for you regarding your midi chain. Unfortunately every device seems to treat out and thru slightly differently. It will probably help to get just the OT and AK working together and then introduce the integra. P.S. Only 16 channels of midi, generally speaking. You can get midi through and splitter boxes to extend this, but I don’t believe it’ll help in your situation while using the OT as master, which can only assign channels 1-16.