Symphony Edward Elgar, Gustav Mahler, Jean Sibelius, Carl Nielsen, Igor Stravinsky, Bohuslav Martinů, Roger Sessions, and Dmitri Shostakovich composed symphonies "extraordinary in scope, richness, originality, and urgency of expression" (Steinberg 1995, 404). One measure of the significance of a symphony is the degree to which it reflects conceptions of temporal form particular to the age in which it was created. Five composers from across the span of the 20th century who fulfil this measure are Sibelius, Stravinsky, Luciano Berio (in his Sinfonia, 1968–69), Elliott Carter (in his "Symphony of Three Orchestras", 1976), and Pelle Gudmundsen-Holmgreen (in "Symphony/Antiphony", 1980). Beginning in the
Symphony No. 6 (Nielsen) Symphony No. 6 (Nielsen) Symphony No. 6 "Sinfonia semplice", (no opus number), FS 116. In August 1924 Danish composer Carl Nielsen began working on a Sixth Symphony, which turned out to be his last. By the end of October he wrote to Carl Johan Michaelsen: The first movement was finished at the end of November while he was in Copenhagen, and the second movement was composed during Christmas. At the end of January 1925 he traveled to the French Riviera with his wife. While he had been in Copenhagen, Nielsen had composed the third movement, but he now had to