The choreography, music and design elements for Split Sides were each created in two parts, or, in the case of the music, by two bands. British rock band Radiohead and Sigur Ros, an experimental group from Iceland, composed the music. Without using vocals or beats, both groups took a random assortment of sounds and fed them through electronic equipment. The décor is by Robert Heishman and Catherine Yass, and costume design is by James Hall. Each performance varies, as chance procedures decide which of the two versions of each element will be paired together.