Karlheinz Stockhausen

Stockhausen on a beautiful day:
Stockhausen on a beautiful day

Karlheinz Stockhausen "Helicopter String Quartet":
http://www.youtube.com/watch?v=13D1YY_BvWU

Stockhausen on 'sounds', 1972:
http://www.youtube.com/watch?v=pIPVc2Jvd0w

Stockhausen on human evolution, 1972:
http://www.youtube.com/watch?v=nTeLI5dUzKw

"The Greatest Work of Art in the Entire Cosmos":
http://www.andante.com/article/article.cfm?id=14377