Early 20th-century music

"The years spanning the end of the nineteenth century and the earliest part of the twentieth were a time of great expansion and development of, as well as a dramatic reaction to, the prevailing late Romanticism of previous years. In music, as in all the arts, expression became either overt (as in the early symphonic poems of Richard Strauss (1864-1949), the huge symphonies of Gustay Mahler, or the operas of Giacomo Puccini), or was merely suggested (as in the so-called "impressionist" music of Claude Debussy. The previous century’s tide of Nationalism found a twentieth century advocate in the Hungarian Bela Bartok. It was a time of deepening psychological awareness, with the works of both Nietzsche and Freud in circulation; and the horrors of the First World War brought death and destruction to the very doorsteps of many people living in Europe. Possibly in reaction to such influences, the expressionistic music of Arnold Schoenberg and his disciples germinated and flourished for a time. Experimentation and new systems of writing music were attempted by avant-garde composers like and although none gained a foothold with the public, these techniques had a profound influence Edgard Varese on many of the composers who were to follow." http://www.ipl.org/div/mushist/twen/index.html