This DIY FM Synth Bass Has 120 Assignable LED's
In this video from Youtuber Dean Miller, we get a demonstration of his DIY FM synth bass built on the Blackfin microprocessor for sound, using 6 operators and 4 voices.
From information provided in the video’s description:
demo of my FM synth bass built with a Blackfin+ DSP
backing tracks have the original bass part isolated and removed from the recording.
Electronic hardware and software is custom built by me.
You can visit his Youtube channel for more awesome synthesizer videos.