Ron,  Your most recent inquiry provoked me into checking out an old
reference I had forgotten about (God, I hate growing old...  :-(
Here's what I found:

Wurlitzer 125 band organ roll; 6" wide; 0.1227" per space

  5 Bass notes
  9 Accompaniment notes
 14 Melody notes
 13 Trumpet notes

  1  -  Shutoff
  2  -  Snare drum
  3 to 7, Bass  -  G, C, D, E, F
  8 to 16, Accompaniment  -  G, A, B, C, C#, D, E, F, F#
 17 to 30, Melody  -  A#, G, A, B, C, C#, D, E, F, F#, G, A, B, C
 31 to 43, Trumpet -  E, F, F#, G, A, B, C, C#, D, E, F, F#, G
 44  - Bass drum
 45  - Rewind

Regards,

Terry Smythe
Winnipeg, MB, Canada   R3J 2N6
http://www.mts.net/~smythe