Hello, new here. I was hoping someone might know of a model number or be able to provide additional information on this Musitronic Electronic Piano. It has in addition to the piano a harpsichord & celeste option. There are a few more buttons. One is "group". I'm trying to figure out if the piano might function like a Wurli similar to some of the Musitronic student models made by Wurlitzer or if it is closer to an electric organ. Either way, I think it's pretty cool & would love to know more about it. I can't find info anywhere!