Showrunner Matt Selman and producer/animator David Silverman joined Groening for a panel on all things 'Simpsons' at the ...

The Emmy-winning composer/arranger worked with a 35-piece orchestra for 27 years, creating music for The Simpsons. Clausen died May 29. Originally broadcast May 14, 1997.

He created the music for hundreds of episodes over 27 seasons, spanning jazz, rock, blues and musicals. He won two Emmys and was nominated for 28 more.