The blues is an American art form and the most important musical form in jazz. Although there are other formal paradigms of the blues, such as 8-bar or 16-bar, this course focuses on different incarnations of the 12-bar blues. There are considerable differences between Early Jazz blues, Swing blues, Bebop blues, Modal blues, and Post Bop blues. Each type has its unique harmonic syntax, melodic vocabulary and, associated with them, improvisational techniques. While other aspects of jazz performance practice have been constantly changing from one stylistic convention to another, the blues has never lost its identity and expressive power, and continues to exert a powerful influence on the harmonic and melodic syntax of jazz.