This looks a little like the NDLR from Conductive Labs. The NDLR is a hardware box. While you can enter chord progressions into it, it's intended for live performance where you enter chords as it plays them.

My issue with the NDLR is that its sequences have no random variation. If you don't keep tweaking the parameters ("noodling"), it starts sounding repetitive quickly.

Any idea whether Warp would run on MicroPython? The NDLR, or a box like it, might make a nice UI.