After my posting to the 100421 MMD about Wilcox & White vs. Aeolian
rolls, Stuart McCaskill wrote the response below (via Kevin McElhone),
which Stuart has permitted  me to share here.  (Note that in the last
paragraph Stuart describes a non-destructive method of adapting 46-note
music to play on 44-note machines via use of a custom spool.)

"Someone forwarded your post to me.  Regarding your question of the
adaptability of the rolls, there is no question that cutting down an
Aeolian roll would work just fine.  You would remove the equivalent
of the paper width of the two lowest base notes.  The Aeolian roll
paper is 9 5/8" wide and I believe the 44-note rolls are something like
9 1/4"; you would know.

"I say this because I have done the reverse, adapting a 44-note roll
to the Aeolian 46 several times.  You have to install new, larger
Aeolian pins, with the idler pin being longer, as Aeolian had two more
notes.  You have to compensate for the shorter core by adding a longer
idler pin.  Of course, the drive and idler pins are exactly opposite
and reverse to that of Wilcox and White.  The paper on these early
rolls is not reversed between the two makers, however.  The later 58-
note rolls have the W&W spooling backwards from Aeolian.  The 44-note
and 46-note rolls spool in the same direction, and it is not necessary
to reverse the paper by unspooling and re-rolling backwards, as you do
when adapting Wilcox and White to Aeolian in the 58-note format.

"To play the 44-note Pneumatic Symphony rolls on the Aeolian 46, the
lowest two holes on the Aeolian 46 tracker bar are covered up with thin
leather or tape and, voila, you have perfect music playing.  Aeolian
and Wilcox and White shared the same masters at the roll cutting
facility in Meriden, Connecticut.  The music is identical both in the
46-note rolls and 58-note rolls.  No difference.

"The tricky part in adapting a 46-note roll to a 44-note roll is the
spool.  The 44-note spool does not require any core modification in
order to play on a 46-note organ.  The longer idler pin takes care of
the added width.  In the reverse of going wider to narrower, you must
make a new 44-note spool.  It's your only option.  The 44-note spools
also use a smaller drive pin and idler pin than Aeolian used.  The 44-
note rolls also have a swaged "wing" drive pin like the later 58-note
rolls used by both companies.   Aeolian used a half-slot drive pin in
their 46-note roll.  I have filed many a half-slot and hammered many a
swaged wing into a pin."

Todd Augsburger
Roller Organs
http://www.rollerorgans.com