Don, thanks for the information.  I also made the request on
a mechanical music Facebook page and a person replied with the
information you submitted to the MMD many years ago.  It matches
what you posted here and I was able to confirm that the information
does match my tracker bar.

Now that I am pretty much locked in my house I have plenty of time
to work on this project.  My package of some parts I need arrived
from Amazon today and I hope to get all the magnets installed
tomorrow and hopefully hooked up to the computer early next week.

In the meantime I have been spending a lot of times scanning in my
paper rolls and converting them to MIDI files.

Dave Burritt
http://www.universalmidicontroller.com/