Drumcomputers | Roland TR-77 (1973)

This rhythm box was one of the first ever products released by Roland Corporation, and is an updated version of the Ace Tone Rhythm FR-8L. It allowed users to merge patterns, had independent volume controls for each instrument, a fade out feature, and 2-b

Designed with organists in mind, it was taken on by Hammond and is now also widely known as the Hammond Rhythm Unit.


George McCrae’s "Rock your Baby" was one of the first Pop Hit to use this early-generation drum machine.

Roland