Wednesday's MEDICINE BALL CARAVAN on KRVS (11am-noon Central Standard on 88.7FM or at krvs.org) airs recordings by Dock Boggs, Bela Fleck & Abigail Washburn, Phoebe Snow, Bob Dylan, Zuider Zee, The Merry-Go-Round, Viatones, The Band, Countdown Quartet, Rocket Morgan, Dayna Kurtz, Brother Dege, The Budos Band and The Rolling Stones.