I've spoken with a lot of comedians and artists who are also musicians, and in almost all cases have found that their work in music has informed their comedy. Check'em out.
Also: I Just wrote a big article about music in comedy, here's a taste:
COMEDY's MUSICAL GHETTO
For a lot of Comedians the notion of music in comedy is synonymous with the word hack. I know this because I've gotten onstage with a guitar a number of times in the past and, before having done anything heard comics groan "great, another guitar comic." In fact, one of the first times I met the fantastic comic Hampton Yount it was when I'd left my guitar after a show for a minute, he chased me out of the room with it in hand and said "Wait! You almost forgot your career!" Continue reading