Another Look at Harmony Part 4 was written while Glass was working on Einstein on the Beach, and it is easy to hear similarities between the two works. In Harmony, the Voices use solfege and nonsense syllables, where in Einstein recognizable words are sometimes set non-narratively. There are similar harmonic progressions that the two pieces share, though it is less predictable in Harmony. In both works Glass takes all the time he needs to explore his theme. Another Look at Harmony requires approximately one hour to perform with intensity building through the many repetitions over time.

American composer Philip Glass is widely known as one of the most celebrated, influential and prolific of the modern composers. He is frequently referred to as a minimalist, though he prefers to call himself a composer of ‘music with repetitive structures.’ His operas, among them the renowned Einstein on the Beach, are performed across the globe, and he has created work for small and large ensembles, film and experimental theatre, and founded his own performing group, The Philip Glass Ensemble.