Speakeasies, flappers, and easy money -- it's the Jazz Age, when the story of jazz becomes a tale of two great cities, Chicago and New York, and of two artists, Louis Armstrong and Duke Ellington, whose lives and music will span almost three-quarters of a century. As the Roaring Twenties accelerate, Paul Whiteman, a white bandleader, sells millions of records playing a sweet, symphonic jazz, while Fletcher Henderson, a black bandleader, packs the dance floor at the whites-only Roseland Ballroom with his innovative big band arrangements. Then, in 1924, the year Whiteman introduces George Gershwin's "Rhapsody in Blue," Henderson brings Louis Armstrong to New York, adding his improvisational brilliance to the band's new sound -- and soon Armstrong is showing the whole world how to swing. Produced by Ken Burns. DVD includes music information cards. .