Modern classical music is music written in the 20th century and beyond. Although much of it draws heavily on earlier forms, modern composers also experimented with rejection of long-held ideas; notably, Arnold Schoenberg questioned the traditional notions of harmony with his twelve-tone system[?], and John Cage questioned the very definition of music with his use of chance and found sounds.
... actor and film director (+ 1964)
February 11 - Henry LaBouisse[?], head of UNICEF (1965-1979)
February 11 - Sir Keith Holyoake, New Zealand Prime Minister ...