I am currently scanning a roll for Larry Karp that I have identified as
a Phonola roll.  Can anyone on the Digest help me to learn more about
the Phonola?  I need to know the (intended) width of the paper, the
number of ports in the tracker bar, the port spacing, and the function
of each port.  The roll appears to play notes only (no expression or
pedal).

Any information, however fragmentary, would be appreciated.

Wayne Stahnke