Saxophone quartet, midi-piano.
mobylette is one of a few pieces of mine written for the diatonic music box. It was Ron Ford's idea to commission a few composers to write for this medium and the VPRO made a CD of it in 1995 or thereabouts.
A friend build a motor onto a music box so it could go just a little faster than with manual action. Like a bicycle with a little motor to help you go up hills.