When working on guitar pieces, I have been using a Boss RC-2 to get down ideas but its drumbeat function is just a fancy metronome, it can't change the beat mid song. I will often write a riff to the beat and not know what to write next. Looking for a drum machine that is affordable, easy to use (never used one before), and has the basics. I wouldn't be using this for high quality recordings. Just to make demos, ideas, backing tracks, etc.