In the 1920s, concert halls rocked with everything from jazz to airplane propellers, radio became a multimillion dollar industry and art and literature flowed like bathtub gin. On this week's "Exploring Music," Host Bill McGlaughlin gives us a guided tour through the Roaring '20s in New York, Paris and Berlin, introducing us to music from about two dozen composers, including Igor Stravinsky, Duke Ellington, Edgar Varese, Kurt Weill, Maurice Ravel, Germaine Tailleferre, Bela Bartok and Jerome Kern.