Features on Wednesday's MEDICINE BALL CARAVAN on KRVS (11am-noon Central Standard on 88.7FM locally or krvs.org) include the latest releases by Rodney Crowell, Jocelyn & Chris Arndt, Marcus King Band and Zucchero. Also: stuff from The Record Company, Elvis Costello, Elton John, Procol Harum, The Beatles, Frank Sinatra, Nelson Riddle and Yes.