This manual provides instructions for the BOSS DR-550 Rhythm Composer, a device designed for creating and playing rhythm patterns and songs. It covers basic setup, including battery changes and initial configuration, as well as how to use the key pads to hear sounds and play demonstration songs. The guide details the process of creating rhythm patterns through step-by-step or real-time writing methods and explains how to organize these into songs.
The BOSS DR-550 is a Rhythm Composer.