From what others have said, I may be one of the few using arranger keyboards to generate backing tracks for live solo guitar work. Playing from CD's or minidiscs, this approach works great from me. Most, who ask, seems amazed and want to know where that band comes from? This application works well for easy-listening, no-pressure cocktail music, receptions, etc., where they don't care what you play. As you would guess, taking requests is tough with prerecorded background tracks. I try to anticipate what the occasion calls for.