"I Got Rhythm" was composed by George Gershwin with lyrics by Ira Gershwin and published in 1930. It became a jazz standard. Its chord progression, known as the "rhythm changes" is the foundation for many other popular jazz tunes such as Charlie Parker's and Dizzy Gillespie's bebop standard "Anthropology (Thrivin' on a Riff)." Martin's arrangement is played in the key of G.
