Where does music come from?

Evolutionary Neurobiologist Mark Changizi argues in a thought-provoking piece, that music is the result of "cultural evolution." The idea is that through evolution, our brains developed structures and abilities which, once in place, allowed for music to develop. I am with him up to this point. Changizi is not alone in this view, though perhaps he is more specific in his exploration of the types of earlier functions or abilities that may have allowed for music to develop. I do not, however, subscribe to the view that he and others seem to hold that music is "auditory cheesecake," and unimportant for survival or evolution. Music clearly serves social functions and in my view was an integral element in the social bonds that created our culture in the first place.