I also have a Pianolodeon with several rolls.  A few years back, I
interviewed the people who designed it and found the story quite
interesting.  The rolls are the same as the ones that work on the
player-sax and similar instruments.  I'm not sure if they also work on
the Melody Player.  If you want me to send them to you or Ed Schmit? to
copy, maybe we can work something out.

Regards,

Craig