I didn't know it was possible. I thought in order to have something repeat forever you need a looper. I played with a multi effects unit and discovered hold delay. I had so much fun with that. I laid down a bass track, added some funky guitar, then jumped behind a drum kit and jammed with... me. AAAAAAAAAAAAAAAAAAAAAAAAHHH, the insanity. What's a good (please be cheap) Delay with a hold option.