I am looking for information.  As I have done several times, I will be
hooking up a piano to a theater organ.  However in this case the piano
is an Ampico, and I will be adding magnets [electro-magnet valves] to
run the stack and the intensities.  I had the thought that it would not
take much more to add all the magnets and hook in a midi driver board
to operate the Ampico via MIDI control.

My questions:  Are MIDI files available to play an Ampico via MIDI
control?  How would these overlay with MIDI notes?

Ed Copeland