Hello,  Here is the description of a new 32-output MIDI interface able to
switch relays, electromagnetic devices, et cetera, in order to automate
a mechanical musical instrument, or to command lights, etc.
Here is the link:

http://www.members.aol.com/decomidi/   (French)
http://www.members.aol.com/decomidi/index_english.htm

I hope my English is not too bad for the translation!  If you have any
question, email me...

Patrice Rabby, from Normandy, France