One of the great composers of our time, a man as strange and wonderful as he was influential and masterful, Karlheinz Stockhausen has died at age 79.  The official dedications can be found on his homepage:

Stockhausen Passed Away

I have also attached a recent remix/improvisation on his one of his most famous works,Gesang der Jünglinge ("Song of the Youths"), composed in 1956.  This performance was done here at CEMC in 2006.

Masterpieces of the 20th Century, Gesang der Junglinge