Tuesday's MEDICINE BALL CARAVAN on KRVS (11am-noon CST on 88.7FM locally or krvs.org everywhere) dials up recent releases from Cedric Burnside, Corey Ledet Zydeco, Norah Jones w/ Mavis Staples, Sunny Duval and Southern Culture on the Skids. Also: Dirk Powell, Caleb Elliott, Lane Mack, Bonsoir Catin, Cathead Biscuit Boys and more.