Eh? No thanks, there’s enough visual information coming at me already.
But out of curiosity I tried overlaying a music frame over a graphic. The graphic z order overlaid the music, but maybe if you used an image with transparency. Or you could do some kind of border thing if you like.
Grid lines in the background, I’d welcome, but I’d much rather any other feature for productivity, engraving or notation than wood-grain panels and pretend paper on the interface.