At www.hobbydraaiorgel.nl you can obtain plans for making a 20-key
crank organ.  This organ has 56 pipes and four registers, which
makes these plans unique.  Especially for beginners there are eight
additional pages written with extra information.  At the same web
page you can get information for making music rolls for this organ
and MIDI files for making these rolls.

Wiel Geraats

 [ http://www.hobbydraaiorgel.nl/subdir/en_hoeffle.htm 
 [   Plans for 20-key crank organ Walter Höffle.
 [ http://www.hobbydraaiorgel.nl/subdir/en_demoboek.pdf 
 [   A few sample pages for inspection...
 [ -- Robbie