Hello to all.  The music roll perforator is finished now.  I was able
to increase the performance by installing a 4-threads-per-inch Acme
lead-screw and nut.  Good enough for now.  I have just updated the
web page with new pictures and video:

  http://members.cox.net/wmbusker/Busker.shtml

There you will find references for the software that I use, including
a converter from Midiboek to Gcode.  The converter reads the Rep file
generated by Midiboek, performs some optimizations and creates a Gcode
text file.  I am posting the converter for download at the web page.

Wagner Mello