The Art Ensemble of Chicago is an avant-garde jazz group that grew out of the Association for the Advancement of Creative Musicians (AACM) in the late 1960s. The ensemble integrates many jazz styles and plays many instruments, including "little instruments": bells, bicycle horns, birthday party noisemakers, wind chimes, and various forms of percussion. The musicians would wear costumes and face paint while performing. These characteristics combined to make the ensemble's performances both aural and visual. While playing in Europe in 1969, five hundred instruments were used.

Roscoe Mitchell is an American composer, jazz instrumentalist, and educator, known for being "a technically superb – if idiosyncratic – saxophonist". The Penguin Guide to Jazz described him as "one of the key figures" in avant-garde jazz; All About Jazz stated in 2004 that he had been "at the forefront of modern music" for more than 35 years. Critic Jon Pareles in The New York Times has mentioned that Mitchell "qualifies as an iconoclast". In addition to his own work as a bandleader, Mitchell is known for cofounding the Art Ensemble of Chicago and the Association for the Advancement of Creative Musicians (AACM).