I think Dave speaks for us all when he writes: "Yahh!! (hork, gasp, choke) WHAT!! IS!! THIS!! THING??" And the answer is... I'm not sure. It's an attachment for an electronic accordion. "It has the same switches that are on the accordion. Light in weight and a show stopper. Only 12 of these were ever made." Imagine the kind of band you could form if you found the other 11.