Koyaanisqatsi: Life Out of Balance is an experimental film made in 1982 by Godfrey Reggio. He commissioned minimalist composer Philip Glass to create music to accompany the film’s images of urban and pastoral landscapes, and Glass wrote a series of compositions that depart in some ways from his earlier style without abandoning the general principles of minimalism. This 1983 recording contains only about half of the music that was featured in the film; Glass would later record more comprehensive versions.

– Rick Anderson