Wednesday's MEDICINE BALL CARAVAN on KRVS (11am-noon CST on 88.7FM locally or krvs.org everywhere) hits the newest from Ben Harper w/ Rhiannon Giddens, Lucinda Williams, Daiquiri Queens and Soul Creole. Also: Michael Doucet & L'ache Prise, Tony Joe White, C.J. Chenier, Buckwheat Zydeco, Lane Mack, The Revelers, FeuFollet, Waylon Jennings and The Grateful Dead.