In response to Wayne Stahnke's comments on the test rolls: I have a
copy of a T-98 (Green Welte) test roll, from the 1920's. Stamped (or
stenciled) in purple ink is the notation "SCALA FEUR WELTE MIGNON"
several feet beyond that, handwritten in blue ink is "Controlle No 1".
The note test then begins, but without repetition, each note also has
the note name (A,B,C, etc) hand written befor the hole, again in blue
ink. The break between bass and treble is noted on the roll and the
tempo changes from 80 to 100. The 2nd test is the single note/chord
type and the 3rd test is the MF pneumatic setting. It is for the Green
Welte system because of the long chain perforations that begin with
test #3.

I also have Licensee test rolls from Deluxe and the Brown box/Gold
label factory ones, in addition to the usual QRS one and a recut done
by Frank Adams in the 1970's. Wayne, you're welcome to use the rolls
for research because I would really like to see an extensive test roll
for Licensee developed that will insure that the machine can be dailed
in so the rolls played will faithfully recreate the artist. Too many of
the test rolls extant are inaccurate and vague. Which results in pianos
that sound terrible!