I build robots that automate guitar picking--I send picking patterns via MIDI from a DAW to a robot built on the top of a guitar. This is fun, because it means you can fret with both hands, or use your right hand to control effects, change picking patterns, or do other things (I tend to think of it as giving the right hand more "directorial" functions).
I recently rebuilt the controller and gate/velocity module into a Eurorack-sized module.
Here's some noodling around with it (three tracks, not a finished piece):
Hey, nice to see you here—thanks for the update!
I really like that cyborg shoegazey piece and would love to hear it longer.