So, this is another one of those "Gee, I haven't tried to stretch myself, compositionally, pretty much ever. So I should screw with things a little" pieces.
Most popular music and just about everything I've written before has been in 4/4 time. I had intended to write it in 6/8 time, but it turns out that I wrote it in 6/4 time instead.
It's based on the chords for a jazz standard (Rhythm Changes) but it doesn't necessarily sound like jazz.