I'm not sure this is in the right section but I couldn't really figure out where it belonged. So ok, the easy answer is "a drummer" but I am looking for some app, effect or device I can buy that has a range of pre-programmed drum grooves that it can loop as well as the ability to program custom beats. Main reason is for practice, recording and working out song ideas. I know there are a variety if drum machines out there but I'm looking for something easy enough to use that I don't have to be a computer programmer to do it but has more to it than what's available on some of the bass multi effects units. What are you guys using?