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.
... Geography
According to the United States Census Bureau, the city has a total area of 113.1 km² (43.7 mi²). 110.9 km² (42.8 mi²) of it is land and ...