Wednesday's MEDICINE BALL CARAVAN (11am-noon Central Standard on 88.7FM locally or www.krvs.org) kicks off with several numbers by Lucinda Williams (appearing tonight in Lake Charles). Also: more Louisiana faves from folks like Wendy Lorraine Colonna, Brother Dege Legg, Bas Clas, The Shiz, Makers Reel, Dirk Powell, The Revelers and The Pine Leaf Boys.