
The Rhythm Guide function has been beefed up considerably for the BR-864. First, BOSS added full programmability, meaning you can tap in your own drum patterns in addition to the dozens of great-sounding presets. A new Tone Load function lets you add custom drum sounds by importing .WAV/AIFF files. Best of all, the Rhythm Guide doesn't use any of the 64 recording tracks, so you still get eight playback tracks and drums.