Key: Too obvious, not obvious enough, about right
This is one of the worst config tabs, and it's the first one you see!
There is no reason for this to be its own tab.
Likewise
These are debatable – if only the notation editor remembered your last setting, it probably wouldn't be necessary to have them as configuration options at all.
This one's OK I think
This one is highly problematic because of the “After quantization” options incorrectly affecting playback and editing in non-notation views. That makes it sort of a recording option, but it's clear that these are intended to be completely notation-specific. Have to think about this.