Cage, John. (1912–1992) Autograph Letter - "I am concerned with experience, not with value judgments"An interesting letter from the composer who experimented with the nature of sound and devised new systems of musical notation. His innovative ideas on composition and performance influenced musicians, painters, and choreographers. One page, ALS on the composers personal Note o Gram with original written sheet and pink copy. Dated November 15, 1984, Cage writes in full: "I am sorry to say that I cannot answer your questions. I am concerned with