A recording sequencer, you play notes in, it will play them back. Has rests, glide, etc., and 3 outputs, which you can assign to any of the 8 sequence slots in the machine.
Mostly surface mount pre-installed, so the build is pretty quick. Only issue I had was I needed to file the push-button holes on the front panel to prevent the switch handles from binding, not a big deal.

Pretty good little unit.
Build