In the "Classical MIDI Archives" - section 'Mozart' - I found the
following pieces from Wolfgang Amadeus Mozart especially written for
organ machines:

   Andante für Orgelwalze, KV 616 (H.Heldstab)
 { Andante for organ cylinder}
     "http://www.prs.net//m/8/kv616.mid"

   Ein Stück für Orgelwerk in einer Uhr, KV 594 + KV 608 (F.Raborn)
 { A piece for action of an organ in a clock }
     "http://www.prs.net/m/7/wamk594.mid"
     "http://www.prs.net/m/7/wamk608.mid"

Claus Kucher