They were! The Maestro unit didn’t have expression inputs, or pad inputs. It only had rhythm presets that you couldn’t change and an external start/stop switch.

They were! The Maestro unit didn’t have expression inputs, or pad inputs. It only had rhythm presets that you couldn’t change and an external start/stop switch. It was simple, but it required creativity and some electronics skill (or at least a lot of trial and error and soldering).