"Duets" is comprised of six sections. Originally choreographed to be included in the Events, Cunningham decided they could be a work of their own. He added a brief entrance and exit by one of the other couples in each of the duets, and ended with all of the couples sharing the stage. As if a still photograph were being taken, the ending consists of three short phrases, each followed by a brief stop, closing with a blackout. Using recordings of traditional Irish drumming, Cage composed the music, entitled "Improvisation III." Mark Lancaster designed the costumes: each dancer wore a color that was featured in the costume of one of the other couples.