Bob Taylor,  Your discovery of incorrect Pedal notes on the Dethier
116-note Aeolian organ roll is most interesting.  It sounds as if the
piece was originally recorded for the Duo-Art system; but for some
reason was issued on the 116 note system.  If it was for the Duo-Art,
then his playing on the two upper octaves should have been caught in
the original editing and the coding added.

I wonder if originally the roll had used holes #9 and #11, which indeed
would shift the Pedal notes up one or two octaves?  Sounds like an
error was made during the editing.

I suspect that Dethier did record the piece on the recording organ
himself and that this is not one of the "Aeolian Organ Guild"
selections, but yet is credited to him.

This brings up a question, and I have never had two answers that agree:

(1) When holes #9 and #11 are used, did they disconnect the 16' octave
and play only on the 8' or 4' octaves, or

( 2) Were the two upper octaves _added_ to the 16' octave?

I suspect #1 is correct, as then the artist could do a Pedal run and
not run out of notes.

I have played rolls on one Aeolian organ where these two holes did
indeed _add_ the other two octaves for a big Pedal sound.  Indeed,
there are many wonderful pieces recorded for the 116-note Aeolian
system that never got translated to the Duo-Art, and certainly should
have been issued in the fully automatic 176-note system.

I have to start cataloging my Duo-Art roll collection and I certainly
will look for this piece and report back.  In my master list of Duo-Art
rolls, there are a large number of roll numbers that are blank.  This
piece may be one of them and just never got cataloged.

Jim Crank