Todd, very cool of your family to volunteer, it sets a great example for them which they are more likely to accept rather than a lecture. I am always concerned about the So Cal. mindset of "it is all about me" and the influence on our children.
As parents we always try to lead by example. Now having said that, Lance my youngest is starting trumpet lessons. So being the good father that I am I have been introducing him to "real musicians" like Miles Davis and this-
http://youtu.be/X_x2frivy6w
except I forgot that when asked what is the name of that cool song, it is "Love For Sale" . Daddy can be an idiot sometime.