20th century classical music

20th century classical music, the classical music of the 20th century, was extremely diverse, beginning with the late Romantic style of Sergei Rachmaninoff and the Impressionism of Claude Debussy, and ranging to such distant sound-worlds as the complete serialism of Pierre Boulez, the simple triadic harmonies of minimalist composers such as Steve Reich, and Philip Glass, the musique concrète of Pierre Schaeffer, the microtonal music adopted by Harry Partch, Alois Hába and others, and the aleatoric music of John Cage.

See also

• List of 20th century classical composers
• Contemporary music