You can't complain too much when someone dies at 91 but this is still sad. He was a giant, along with his saxophonist Paul Desmond.

http://marquee.blogs.cnn.com/2012/12/05/jazz-great-dave-brubeck-dies-at-91/?hpt=hp_t3

Their most famous composition was a jazz classic, "Take Five," so named for the 5/4 time.

UPDATE: http://www.nytimes.com/2012/12/06/arts/music/dave-brubeck-jazz-musician-dies-at-91.html?hp&_r=0