I just put a piece of black and white decorative paper in the frame and had stenciled some skeleton keys on the lid. It just looked DUMB! So I sanded off the black skeleton keys, applied a fresh coat of white paint to the lid; then stenciled on the same PARIS as I had done on the jewelry box.
I thought I had some really cute black and white toille paper that I could use inside this frame. Alas, it was IVORY and black and just looked DIRTY next to the white box. All of the REAL sheet music I have is old and yellowed too, so that was out. Fortunately I found a piece of black and WHITE music paper in a packet of scrapbook papers that worked perfectly!