Keep your radio speaker handy for Wednesday's MEDICINE BALL CARAVAN broadcast (11am-noon Central Standard on 88.7FM locally or www.krvs.org). On tap are brand new tracks by John Fogerty, Patrick Sweany and current faves from JJ Grey & Mofro, Hanni El Khatib and Bombino. Also: classic spins from The Band, Stephen Stills, Pink Floyd, Walter Wanderly and Traffic.