http://musiced.about.com/od/20thcentury/p/cage.htm
http://en.wikipedia.org/wiki/John_Cage
_ John Milton Cage Jr. / Living Room Music
https://youtu.be/y_0SmLaFzas
_ John Cage / Living Room Music
https://youtu.be/CMSD0oIfkqc
_ John Cage - Imaginary Landscapes (Percussion
https://youtu.be/ASGBGQ2yaMo