I've enjoyed punching out Duo-Art rolls on my Leabarjan for 35 years,
off and on.  Sometimes they are new recordings for me only, sometimes
just a section of a roll that's warped or torn.  Other times it's
been originals I've given up hope of ever seeing recut.

Just a few minutes ago while I was copying an original and noticed
double length theme holes in the treble and singles for the bottom half
of the same chord in the bass (initially a Theme #10 over an Accomp.
#4).  I put the roll on the piano and played it.  The treble sounded
a shade louder than the bass.  The vacuum gauge seemed to bear it out,
though catching it with the roll in motion was tough.

I had previously been convinced that the standard [accordion] Duo-Art
was limited to about 256 levels.  (The fan system is a different beast
and not subject to these limitations).  I feel I have to eat my words.

The coders of this particular roll (Mvt 1, Symphony 6, Tchaikowsky)
use this device repeatedly.  I know I've seen it before, but I never
thought to check it out before.

Perhaps this has something to do with how much different the
renditions are when the piano is playing an original roll, a Powell
recut, a Play-Rite or a Keystone recut, etc., with large theme holes.

Some time back I designed a way to include original size Theme perfs on
the carriage of my Leabarjan, but discarded it as unnecessarily picky.
Maybe I'll have add those punches.

I'm sure there may be someone saying, "Now what's he want to be copying
that Symphony for?"  The answer -- from a romantic who still plays
paper (me) -- is that there is a recurring melody that is reminiscent
of "John of Dreams" which owns my heart.  So I sit here, listening to
my rolls punching my life away...

Bruce Grimes