The bezel is roughly an inch all the way around, which doesn't seem unreasonable. If you hold up two US Letter pages to the screen, they fit by width, but the top inch of each page gets cut off. That says if your sheet music is printed with 1-inch margins on US Letter, you can have it on screen at full-life size without cropping anything.

Like I said before, a regular music stand would not stand up well to this much weight on top. You'd want to build/buy/cobble something more substantial. The built-in kick-stand thing seems reasonably solid and you can change the view angle. It's just held together with friction on the joints, so over time I'd expect it would loosen up, and thus the need for a more substantial stand.