Although I have occasionally played keys on recordings and a couple of times live, I mainly play them for relaxation, as a hobby. That’s why I loved the 220: I could drag it around with me, press power (batteries) and noodle around for relaxation. That’s what I was hoping to do this this week while I was vacationing in Florida, but discovered that one note in every octave ( the same one) won’t put out any signal.