 "Oleo" is one of a number of jazz standards to be based on the same chord progression as that employed by George Gershwin's "I Got Rhythm".Other standards which use "Rhythm" changes include Charlie Parker's "Anthropology", Dizzy Gillespie's "Salt Peanuts", and Thelonious Monk's "Rhythm-a-Ning".The A section is transcribed, whilst the B section is left empty either for the performer to improvise in, or for the rhythm section to 'comp' over.