I agree Mark, by using zebras a shooter can generally avoid overexposure. I'll take a look at the edges of the sheet music on my computer monitor tomorrow.
But keep in mind one thing that I think is being missed in many threads, you can often control overexposure if you so desire. Why do I say 'if you so desire'? For the simple reason that so often the overexposed area is unimportant to the subject content.
So is the edge of the sheet music so important to the subject of the video? I say no and thus 'who cares?'. If a face is blown out, an instrument or something important, sure, we've lost something, but the edges of the sheet music? The same is true when I discussed in another thread the idea of an interior shot with our subject standing in front of a window. Most cameras will blow out the window, but do we really care? The subject is the person standing in front of the window, not what's on the other side of the window.
This is why in virtually any Hollywood movie, any professionally shot video or any documentary type interview, the window will be blown out regardless of the dynamic range of the camera. In fact I will contend that it would detract from the focus of the subject if we were to clearly see all of what's going on on the other side of that window, and that's why directors don't want that detail.
Now of course there will be times when I'd like to use extra dynamic range that I don't have, but as I've said, nothing is perfect. But my point is there are so many times something is blown out in a scene and it makes not a bit of difference to the 'success' of that scene, because the blown out area is totally irrelevant.
To my eyes I'm achieving a higher degree of realism, overall, than some cameras with a greater dynamic range. Now, if you offered that greater dynamic range together with excellent color, in a hassle-free package (read: no grading, no mandatory cc etc.), I'm in!
Besides Mark, we both know that you and I will be shooting 4K before too long. In the interim I'm really having fun with the RX10. It's truly exceeded my expectations.