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.
... National[?] (FN or National Front) – Group founded by members of the French communist party[?] in May 1942. Leader Pierre Villon[?] (Not to be confused with the current ...