Dear Hans, I read your posting on MMD 23.12.99 with interest.
I designed and built a system for punching organ roll music from MIDI
files.  I have been selling this design as a booklet with plans and
software for =L=35 UK or $63 USA, and there has been a great deal of
interest over the past year, worldwide.

The principle of the punch machine could be easily adapted to punch organ
book music in any format and the software remains the same.  Details and
pictures are on my web site:  http://members.aol.com/midpunch/

Happy Christmas from Warwickshire, England

Bob Essex