John Cage was a major innovator who opened up new musical possibilities in the latter half of the twentieth century. Cage’s perspective of composing music was very popular in the twentieth century. The composition of music developed to another period in twentieth century. As a pupil of Schoenberg, Cage went further to create new method in his music composition. His ideas of envisioning the music, and using time and duration to compose, were pioneering. The vocabulary of music expand to all kinds of sound instead of prioritizing pitches in scales. Schoenberg had abandoned traditional musical language and invented the 12-tone system, trying to find a new method in composition. However, Cage went further beyond the 12-tone system, and he involved