Hello Jody,  I have an old Hofbauer organ with the Hofbauer Mikrobox
system.  As an 'electroniker' I would convert the system to play with
MIDI control; unfortunately I have no information how the system works
internally.  In an very old MMDigest I found that some not-public
information is available.  Where can I get the information or can you
help me?

Best regards from Germany,
Michael Benz

 [ MMD articles about Hofbauer and the Hofbauer Mikrobox are indexed at
 [   http://www.mmdigest.com/Archives/KWIC/H/hofbauer.html 
 [ Claus Kucher wrote about a review printed in a German magazine:
 [   http://www.mmdigest.com/Archives/Digests/199608/1996.08.20.14.html 
 [ and Thaine Morris tells of a MIDI converter he found, at
 [   http://www.mmdigest.com/Archives/Digests/201304/2013.04.10.02.html 
 [ -- Robbie