Hi, guys:

Steven wrote: I did get it playing, for some odd reason, it suddenly came on! then it just went off again, then came back with what seemed like stuck notes, or at least the software not sending the correct timings on note. The music vaguely sounded correct.

That sounds suspiciously like that old nemesis, the IRQ conflict. But if it works with Player, it should work with Composer.

"Curiouser and curiouser," said Alice.

David