Hello MMD.  I have a QRS roll similar to Troy Taylor's.  It is #20175
and it is the Primo part of F. von Suppé's "Poet and Peasant Overture".
The Secondo part in the bass is supposed to be played by a second
pianist, although I suppose a really agile pianist could play the
Secondo part on the player's keyboard while treadling through the roll.

I managed to find the printed music arranged as a duet and it was the
same edition as that from which the roll was cut.  A long-suffering
friend of mine who is a very competent amateur pianist practised the
piece with me (we have two upright players in our lounge room) and we
presented it at one or two of the pianola parties I used to throw for
my physics students after the end-of-year exams.  It was quite
successful ; well at least we managed to finish more or less
simultaneously.

A couple of my QRS Recordo violin accompaniment rolls got an occasional
airing at these parties, when I found a student who played that
instrument. M611350 (Meditation from "Thais" by Massenet) and M611360
(Humoresque by Dvorak) both starred once or twice, but never I've found
anybody to play the violin part of the third of QRS's forays into the
Recordo-coded accompaniment roll arena.  That roll is A613590 (Hejre
Kati by Hubay).  I suspect that it is ferociously difficult, for an
amateur violinist anyway.

John Phillips in Hobart, Tasmania

 [ Scenes From Czardas No. 4 for violin & piano ("Hejre Kati"),
 [ Op. 32, Composed by Jenö Hubay.  Found at
 [ http://www.musicweb-international.com/classrev/2000/may00/rosand.htm :
 [
 [   "Hubay's name lives on because of 'Hejre Kati' -- one of those
 [ rip-roaring war-horses against which aspirant Heifetzs feel they have
 [ to test their skills and prove themselves.  There is the usual slow
 [ introduction then an increasingly whirling dance off which sparks
 [ fly in welding torch profusion."
 [
 [ -- Robbie