Ref. Andy LaTorre's comment on framing sheet music (970714), we likewise
have several framed covers on display, but the framer was ingenious
enough to enable me to remove the music pages themselves so that they can
be used and played.  I haven't inspected the technique closely, but I
suspect that it should not be too difficult.

Also, I continue my search for a vintage "music cabinet" (roll cabinet)
in antique stores around DC, but so far in vain.

Cheers,

Dan McGrath