I was in a pretty sour mood just now so I wrote a little tune to clear my head. I’m kind of amused at what came out. Maybe it’s just me, but I hear a little Michel Legrand in there. Among other things.
Here’s a recording.
And here’s the score.
Strictly speaking, there are a few voice-leading “mistakes” in this (“direct octaves,” that sort of thing), but I’m aware of them, and I tried hard to get rid of them and, well, the “correct” versions didn’t sound as good. So I went with what I liked better, the rules be damned.