This note is in response to E. Roger's request for information
regarding a test roll for his Aeolian-Hammond instrument.

As part of the ongoing effort to scan test rolls, I recently scanned
the test roll for the Aeolian-Hammond organ, and I recreated the master
roll used to perforate it.  Unlike many test rolls, this one has a roll
number.  It is roll 1000, and it tests the notes for the pedal board
and the notes for both the great and swell manuals.  There are no tests
of other functions, such as setting stops.  It appears that the
leftmost port in the tracker bar is used for rewind.  The two adjacent
ports are not used in the test roll.  Do you know, or can you find out,
what these ports are used for?  My guess is that they switch the pedal
ports up and down by one octave, to allow the entire pedal board to be
played from the roll without employing the one port per note that would
otherwise be required.

I do not know where you can buy a copy of the test roll.  However, I
would be happy to provide you with a computer image of it, and the
tools for examining the image, if you think these would be of use to
you.  You may want to have a new copy of the test roll perforated from
the restored master roll image.

Sincerely Yours,

Wayne Stahnke