Tuesday's MEDICINE BALL CARAVAN on KRVS (11am-noon Central Standard on 88.7FM locally or krvs.org) lays out the newest by The Wailin' Jennys, Tori Amos and John Lilly (who wrote a song about Yvette Landry, the Crawfish Queen). Also: tunes by Pokey Lafarge, John Prine, Grateful Dead, Thelonius Monk, Megan Brown & Josh Caffery, Gaucho, Rasputina, Led Zeppelin, Lou Reed and Blaudzun.