His "Portrait Trilogy" contains Satyagraha and another opera with the sections "Train" and "Trial.
This man composed an opera based on the novel Waiting for the Barbarians, while another of his works takes its title from Apollo's punishment of a bird. In addition to composing White Raven, this man used portions of Seneca the Younger's texts for the libretto of the CIVIL warS, but he is better known for operas taken from excerpts of the lives of Galileo, Akhenaten, and a certain physicist. His "Portrait Trilogy" contains Satyagraha and another opera with the sections "Train" and "Trial." For 10 points, name this minimalist composer of Einstein on the Beach.
This man composed an opera based on the novel Waiting for the Barbarians, while another of his works takes its title from Apollo's punishment of a bird.
Philip {Glass}