Having enjoyed very much listening (on YouTube) to the great young New Orleans band Tuba Skinny playing this tune, I wanted to play it myself. It's good to have a few minor key tunes in your repertoire. To hear Tuba Skinny perform Michigander Blues: CLICK HERE.
I spent a couple of hours writing it out. Like Tuba Skinny, I put it in D minor. Here's what I came up with. It doesn't sound too bad to me as a basis to work on. I tried it with some friends, playing pub lunch jazz at The Dog and Gun, in Syston, Leicester, and it sounded reasonably good. The first four bars are the Introduction; the next 16 bars are the Verse; and the rest (final 32 bars) are the CHORUS, which has an a-a-b-a structure.