I read Allan Moe's article with interest.  I own an Aeolian pipe organ
with a Duo-Art player.  At _some_ stage I would be interested in adding
a MIDI control system.  Presumably, as the organ has an electric
action, the output from the MIDI system could go straight onto the
coupler chest, but I would like to have more information.

Can Allen or anyone else please give me some advice of what is
available, and where, and likely cost?  Thank you.

Paul Morris