Rhythm Change

“Rhythm Changes” is a common harmonic structure in jazz, originating from George Gershwin’s “I Got Rhythm.” It follows an AABA format and is frequently reused in various jazz compositions. Practicing this structure across all 12 keys gives musicians the chance to explore and become familiar with the unique characteristics and tonalities of each key. Working through all 12 keys is an essential practice method to improve a musician’s skills and adaptability in different musical contexts.

This harmonic structure is often played at a fast tempo. As the key changes, the harmonic and melodic characteristics also change, requiring musicians to master different expressions. The distinct rhythm and harmonic transitions in each key blend well with jazz’s improvisational nature.

It’s crucial to fully understand the harmonic structure in each key. Due to the rapid chord changes, precise voice leading and the ability to vary tone and expression in each key are necessary. Close communication with the rhythm section helps maintain the groove and enhances the improvisational quality of the piece. This practice is key to maximizing your harmonic knowledge and technical proficiency, enabling you to skillfully handle a wide variety of jazz repertoires and styles.