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.
... by:President of the Republic [1] (1921-22) answerable to Dáil Éireann
Irish Prime Ministerial Offices
Irish Constitutional Theory
Succeeded by:Taoiseach (1937 - ...