Dave, who is known to the band as "Mr. Producer" is also a product of  Southern California. Dave is a musician's musician who is an expert in composing, arranging, performing, engineering, and instructing.
He puts these talents to good use with

With his extraordinary ear for music, Dave is also an  accuracy aficionado, so he and Jim like to get together and gang up on Van when his rendition of a particular tune is not just right.

However, as our AnswerFans, you are the winners as a result of all this constructive criticism and attempts at perfection.

By the way, Dave is the music department chairperson at Los Osos High School during the day.  Lucky Kids.