THE MEDICINE BALL CARAVAN airs this morning (11am-noon Central Standard on 88.7FM locally or www.krvs.org) with the latest releases by Paul Thorn, Wanda Jackson, Gary Clark Jr., Ben Harper, Jeff Lynne, Jag and Research Turtles. Also: Ollabelle, Mercy Brothers, vintage Fleetwood Mac, Buffalo Springfield and Bas Clas.