@SeriousSamFisher thanks for your interest in the MatriX!
It’s no problem to achieve your goal, here’s a demo of MatriX in isomorphic keys mode:
For it to work, you’ll need a LoopA attached to the the MatriX for MIDI output (e.g. via USB to your DAW, or via DIN MIDI to a classic MIDI synthesizer) - everything can be built by the trusted builders, who also know best about the prices, you could inquire here:
Best regards and enjoy!