There is no single kind of music that led to the creation of Jazz. Instead, the genre evolved, and continues to evolve, from diverse musical avenues. Following the popularity of swing music in the 1930's, Boogie Woogie-with it's characteristic walking bass pattern-captivated audiences and dancers. Performed by pianists like Count Basie and Meade Lux Lewis, this exciting rhythm provides-as Basie said-"four heavy beats to a bar, and no cheating."