The sketch at http://mmd.foxtail.com/Tech/W165spec.html shows how a
Wurlitzer 165 band organ might be played by hand using two MIDI-output
keyboards.  The converse is also possible.

This is how I would connect the pouch switches and tracker bar to play
a Wurlitzer Style 165 music roll on a pipe organ, by connecting the
pouch switches directly to the key contacts of the keyboards of the
organ console.

1. The W165 Accompaniment channels (tracker bar 19-28) would be wired
to the Great keyboard such that channel 23 plays Middle C of the keyboard
and so fundamental pitch C=262 Hz would sound when an 8-foot voice is
selected.

2. The W165 Bass channels (tracker bar 12-17) would be wired to the
Pedal keyboard such that channel 12 plays two octaves below Middle C of
the keyboard and so a note of fundamental pitch C=65.5 Hz would sound
when an 8-foot voice is selected.

3. The W165 Melody channels (tracker bar 30-51) would be wired to the
Swell keyboard such that channel 35 plays one octave above Middle C of
the keyboard and so fundamental pitch C=524 Hz would sound when an
8-foot voice is selected.

4. The W165 Trumpet channels (tracker bar 53-66) would be wired to the
Solo keyboard such that channel 60 plays Middle C of the keyboard and so
fundamental pitch C=262 Hz would sound when an 8-foot voice is selected.

After wiring the pouch switches to the keys of the pipe organ console,
then begins the fun of listening to the music and finding stop settings
(and maybe registration "presets") so that the music sounds nice!

Robbie Rhodes
Etiwanda, Calif.