Here’s an interesting song. Its form is AABA, but the harmonic rhythm makes the sections blend into each other in a way that obscures that form on first listen. Although the song is basically in C major, it never comfortably resolves to that key for more than one bar. The second A section even takes an extra four bars to pass through Ab major on the way to the bridge in C minor/Eb major. I first heard it on a Bob Brookmeyer record dedicated to the music of Alec Wilder.