The piece played before class was John Cage and Lou Harrison, Double Music (1941):
Other pieces played in class, arranged alphabetically by composer’s last name:
Ludwig van Beethoven, opening chords of Symphony No. 3 in E-flat Major “Eroica” (1803)
Johannes Brahms, String Quartet in A minor, Op. 51 No. 2, I. Allegro non troppo (1873)
Philip Glass, String Quartet No. 2 “Company,” I. (1983)
Philip Glass, String Quartet No. 5, III. (1991)
Steve Reich, Clapping Music (1972)
Steve Reich, Drumming, Part 1 (1971)
Frederic Rzewski, Coming Together (1971)
Score: rzewski-coming-together
Performance notes: rzewski-coming-together-notes
Anton Webern, String Quartet Op. 28 (1937-38)