Tuesday's MEDICINE BALL CARAVAN (11am-noon Central Standard on KRVS 88.7FM locally or www.krvs.org) bops along with the latest by Paul Simon, Edward Sharpe and the Magnetic Zeros and Alabama Shakes. Also: some Pokey Lafarge & the South City Three, Bob Dylan, Henry 'Red' Allen, Mississippi Jook Band, Canned Heat, Butterfield Blues Band and more.