Tuesday's MEDICINE BALL CARAVAN on KRVS (11am-noon Central Standard) features tracks by Lucinda Williams, Bob Dylan, Tedeschi Trucks Band, new Chris Smither, Eilen Jewell, Rev. Sekou, Dayna Kurtz, The Flamin' Groovies, Ronnie Dawson, Louis Armstrong and His Hot 7, The Bar-Kays and Kitty, Daisy & Lewis.