A brief musical observation
I've been writing an awful lot of stuff in the key of D lately. Not necessarily D major; in fact, it's usually a blending of major and minor. Unless I'm overlooking something in my notebook, all but two of the pieces I've worked on since March -- that is, from my M.A. thesis forward -- have been in D, and one of the two counterexamples is a percussion piece, and thus has no key. That's at least 40 to 45 minutes of music, basically in one key. If we only count finished pieces, I still have at least 30 or 35 minutes in D. I wonder what's up with that.