Tuesday Tunage on THE MEDICINE BALL CARAVAN (11am-noon Central Standard on 88.7FM locally or www.krvs.org) includes some Jorma Kaukonen, Flat Duo Jets, The James Hunter Six, Booker T and Charles Bradley. Also: local Louisiana pop by The Pop Scene, The Viatones, Carbon Poppies and Fights ! -plus- classics from Spirit, Janis Joplin, Bush Tetras, Bob Dylan and The Mothers.