"Changeling" was part of a trilogy (with "Untitled Solo" and "Lavish Escapade") of which Cunningham was “concerned with the possibility of containment and explosion being instantaneous.” All three were choreographed to piano pieces by Christian Wolff. The choreography followed the structure of the music. "Changeling", made with the same chance procedures as the earlier solos, was characterized by contorted body positions. Cunningham sometimes told people that he was convinced that he was himself a changeling. For this last dance of the trilogy Robert Rauschenberg designed a costume, red tights and leotard with a skull cap.