I had that Yamaha SHS-10 in the 80's, but I don't ever remember it being called a "keytar" back then. It was kind of cool at the time, but felt and played more like a cheap toy. It had midi, and I remember using it to control a Yamaha TX81Z four operator FM synthesis tone module I loved. I didn't have it that long. I wouldn't mind having it now though..........it might make a fun midi controller for my Tyros2's guitars!!!