Music for the Mississippi River

Tomorrow I'm traveling the length of the Mississippi River in my car, La Belle, while a world-class musician takes care of the house and cat.

I exagerate slightly.

I'm not going the entire length, just up to Iowa.

Anyway, my companion on this trip is music. I've got some great songs: "Louisiana 1927" by Randy Newman and Marcia Ball. Emmylou Harris & Levon singing "Wish We Were Back In Missouri." "Memphis" by Cry Cry Cry. "Southern Man" by the Indigo Girls. Everything by Lucinda.

Got any suggestions for future trips? Good themes: cotton, delta, Jackson, St. Louis, Memphis.... What songs would you play for this trip?