I downloaded JOe's MIDI, but couldn't make it work as a round. I tried starting the second part after 4 measures and then 6, but neither way sounded good.

If it's a round (and I hope it is) where do the 2nd and third parts come in?

Are you sure the MIDI is accurate? It has 38 measures - an unusual number.

It will be a beautiful piece if I can get it to work.