Hi, I just bought a big box-load of very old, possibly original, book
music which hasn't been played for years.  A lot of the book music is
not intact and is separated from the rest of the book.  My question is,
what scale is it?

If I could scan it in, and if I knew the scale, and what hole is which,
I could possibly turn the book music to a MIDI file and reassemble the
books.  It's a complicated process but it's a project!

The dimensions for the music: it's about 23.8 centimeters wide, and the
holes punched are 0.5 centimeters.  I've been wondering if it could be
the 52-key Bruder scale, but I am yet to know.  I know the 52-key roll
playing Bruder rolls measure to about 23.8 centimeters -- so I don't
know.

Thanks,
Mikey Mills