Tuesday's MEDICINE BALL CARAVAN (11am-noon Central Standard on 88.7FM locally or www.krvs.org) features recent releases by Steve Martin and the Steep Canyon Rangers w/ Edie Brickell, Oscar Isaac, La Santa Cecilia, Black Prairie, Balval, David Crosby and Ginger Baker. Also: some Hazmat Modine, Bob Dylan, It's A Beautiful Day, Patti Smith and more!