Watch the Rhythm Changes Forever online guitar lesson by John Goldsby from Upright Bass Handbook
Let's play "Rhythm Changes Forever" at a slightly faster tempo. There are thousands of versions of this chord progression which have been recorded by jazz greats over the years. Some of the classic melodies that have been written over the harmony to "I Got Rhythm" include: "Oleo," "Moose The Mooch," "Lester Leaps In," "Cottontail," "Anthropology," and many more.
Musicians like to play rhythm changes at all tempos, so be aware that our version here might be considered medium tempo when compared with some of the famous versions. Once you have this version and bassline under your fingers, see if you can improvise your own line.
Write out your own bassline over a chorus of rhythm changes, and see what sounds good to you. This is a harmonic playground that offers endless possibilities for experimentation and variation.