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.
... September 1983. The 1988 elections reinforced the one-party system. However, in December 1991, parliament repealed the one-party section of the constitution. By early 1992, ...