One of the giants of Twentieth Century music and the international art scene, John Cage began his ventures into the avant-garde as a student of Arnold Schoenberg but soon found even the master's atonalities and use of a twelve-tone scale too conventional for his own ideas. His 1943 concert debut found him using electric buzzers and flowerpots as instruments, but perhaps Cage's most (in)famous piece is "4'33''", which consisted of four minutes and 33 seconds of silence . . . in three movements. For Cage the music came from making people pay attention to room tone and any ambient noises.