One of the lots of random eBay rolls I bought awhile back included a
roll that had somehow been re-rolled the wrong way.  The result was
that the bass and treble were swapped.  It was playable like that,
and the result was pretty interesting!

I was able to get the paper rolled back on in the proper direction,
and now the roll plays normally.

Captain Lindbergh March played normally
  https://m.youtube.com/watch?v=nIkEoatz3eE 

Captain Lindbergh March played bass & treble swapped
  https://m.youtube.com/watch?v=auvRXqyEqac 

Kathleen Hiigel

 [ It's not difficult to install an endless music strip (in a Link
 [ coin piano or similar) so that the music plays with bass & treble
 [ swapped, or it plays from the end to the beginning, or both.
 [ T'would be very interesting if spliced as a Moebius strip ...!
 [ -- Robbie