20th-century classical music

20th-century classical music describes art music that was written nominally from 1901 to 2000. This century was without a dominant style and composers created highly diverse kinds of music. Modernism, impressionism, and post-romanticism can all be traced to the decades before the turn of the century, but can be included because they evolved beyond the musical boundaries of the 19th-century styles that were part of the earlier common practice period. Neoclassicism, and expressionism, came mostly after 1900. Minimalism started much later in the century and can be seen as a change from the modern to post-modern era, although some date post-modernism from as early as ca. 1930. Atonality, serialism, musique concrète and electronic music were all developed during this century. Jazz and folk music were important influences on many composers at this time.