The MIDI track mute buttons on Octatrack can transmit (and respond to) the CC messages here


On Digitone, track mute is CC 94 on the assigned MIDI channel. So you’ve got a gap: you need to turn your 112, 113, 114 and 115 messages into CC 94. If you have a device in the middle for midi processing (for eg. MIDIHub) you could set up this mapping pretty straightforwardly. But otherwise, I don’t think it will be possible to do this directly from Octatrack track mutes.

Your other option is to sequence the Digitone on the Octatrack instead, then muting that MIDI track = muting the Digitone, but that might not work for you if you want to use the Digitone’s sequencer.

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