Tuesday's edition of THE MEDICINE BALL CARAVAN on KRVS (11am-noon Central Standard on 88.7FM locally or www.krvs.org) airs the newest releases by The Cactus Blossoms, Israel Nash, Graham Nash, Jackie Greene and Bonnie Raitt. Also: sounds of The Kinks, Wayne Hancock, Robin Trower, Jimi Hendrix, James Gang, The Flamin' Groovies and more.