Hi Scott,
don't know that particular model. Some of the very early Roland arrangers didn't have disk drives they used some sort of a memory card with a few styles on it. Found the following on it, but doesn't say much. http://www.sonicstate.com/synth/roland_ra-30.cfm

best wishes
Rikki

Quote:
Originally posted by Scott Langholff:
Wondering what kind of sound it had and how the rhythms were.

Scott
http://www.ScottLMusic.com
_________________________
best wishes
Rikki 🧸

Korg PA5X 88 note
SX900
Band in a Box 2022