This morning I worked on the “stride” section of “You Are My Sunshine.” I started writing it as kind of a joke, thinking, “How dissonant can I make this and have it still sound like ‘You Are My Sunshine’?” But then it started to grow on me, and I made some changes, applying what I’ve been learning in my “After You’ve Gone” stride course. So now this section is deliciously rife with 6ths, 9ths, and diminished chords. Not the epitome of sophistication, but I’m excited to move beyond triads and dominant sevenths. For some reason, I’ve struggled with the final measure or so of this section. With the left hand striding on F major, I descend chromatically from an F6 (3rd inversion) to a diminished chord—which diminished chord, I have no idea. Maybe an F diminished? On the keyboard, I’m playing B, D, F, and A♭. From there, the left hand switches to C7 and my right hand descends chromatically to a C9 (B♭ on the bottom), then plays what I think is a C with a flat 9, but which also look...