You’ve heard the sound of it many, many times and you’ve no doubt made some shapes on the dancefloor to them—it’s one of the greatest synths ever, it’s the Roland TR-808 drum sequencer.

As an instrument, it has been responsible for shaping the sound of everything from hip-hop, to dance, to pop— and a new documentary chronicles its incredible legacy talking with artists and producers to find out what makes it so special.