Wednesday's MEDICINE BALL CARAVAN (11am-noon Central Standard on 88.7FM locally or www.krvs.org) broadcast includes recent tracks by Tommy Malone, Dayna Kurtz, Caleb Elliott, Tom Petty and the Heartbreakers, Dex Romweber Duo, Steve Earle and Anders Osborne. Also: some Michael Juan Nunez, Wilko Johnson / Roger Daltrey, The Rolling Stones and Jeff Beck Group.