I own and play four "cat-boxes", "squeezeboxes," or just plain old "boaxes". I was known to John Kirkpatrick [with hands in the air in horror]as "the f-sharp man" in the days when I used to sing a lot in that particular "non-key", although I could play perfectly comfortably in C, G D, OR F. Since I play in a group nowadays, my f-sharp days are more or less over. [What a lot o' guff to write about the names given to an accordion!! Sorry--I'll shut up---]