Strung Out to Music in 12 Parts edit See also: Minimalist music Glass' musical style is instantly recognizable, with its trademark churning ostinatos, undulating arpeggios and repeating rhythms that morph over various lengths of time atop broad fields of tonal harmony. 25, isbn Potter, Keith (2000 Four Musical Minimalists, Cambridge: Cambridge University Press,. Glass also continued his series of operas with adaptations from literary texts such as The Juniper Tree (an opera collaboration with composer Robert Moran, 1984 Edgar Allan Poe 's The Fall of the House of Usher (1987 and also worked with novelist Doris Lessing. This turn to orchestral music was continued with a symphonic trilogy of "portraits of nature commissioned by the Cleveland Orchestra, the Rotterdam Philharmonic Orchestra, and the Atlanta Symphony Orchestra : The Light (1987 The Canyon (1988 and Itaipu (1989). 29 Glass then left Paris for northern India in 1966, where he came in contact with Tibetan refugees and began to gravitate towards Buddhism. Appomattox, an opera surrounding the events at the end of the American Civil War, was commissioned by the San Francisco Opera and premiered on October 5, 2007. Damned to Fame: The Life of Samuel Beckett, New York: Grove Press. This openness to modern sounds affected Glass at an early age: My father was self-taught, but he ended up having a very refined and rich knowledge of classical, chamber, and contemporary music.