At the rally in Chattanooga, I was showing some of the people at
the hospitality suite a MIDI capture system hooked to a MIDI Plus
miniEngine MIDI to audio generator, see

  https://www.youtube.com/watch?v=pnBPyHocm1o 

The MIDIcap boards are now available and information is posted on my
web site [below].  Switches, contacts, relays, optical transistors,
etc., can be used as a real-time source to the capture board which then
puts out a standard note-on/note-off MIDI data stream.  In the video,
a capture board was programmed to use the notes from a MIDI magnet
driver output as the source for the notes and the program also looks
at the Bells On and Cancel signals to control the data going to the
MIDI Plus.

I should have some MIDI Plus miniEngine units in stock later this week.

Bill Klinger
Flippin, Arkansas
http://klingerorgan.com/