I have several song rolls in my collection in a similar vein, inasmuch
as just the accompaniment is perforated with yours truly providing the
song line.  The trouble with these rolls is that they are all in a
mid-voice range whereas I'm a tenor.  Does anybody know if this type
of roll was ever cut for a high voice range?

As regards your QRS roll you will need to pedal and find someone else
with another piano plus the sheet music to play the bass section.

Kind Regards,
Bernard Harris, UK