Agree with you on the 909 and especially the 303, the synth that birthed the acid genre and is still in use to create new music, check out Tin Man Neo Neo Acid. Hard disagree on Plastikman being a musicians musician though. He was beyond huge in the 90ies, saw a guy with a Plastikman tattoo covering his whole back. Richie Hawtin went on to become one of the top DJs in the world. One year he played on four new years eve parties, travelling by private plane.