Hello MMD!  Does someone know if the scale of Alan Pell's 45-note
organ is the same as used by Bacigalupo, Hofbauer and Niemuth?
(See the Alan Pell tracker bar layout at http://www.alanpell.com/ )

Furthermore, are the music rolls compatible?  The German manufacturers
use 190 mm paper, and the spools used by Hofbauer and Niemuth have
a outer-hexagonal end while Bacigalupo's has a dog clutch.

Christofer Nöring
Stockholm, Sweden

 [ Scales of the Alan Pell 25-,31- and 45-note organs are found at
 [ http://www.alanpell.com/Paper_roll/Paper_roll_organs.htm