I have still not seen a bona fide adaptive explanation for music. Ironically, when it comes to music, everyone is a rabid, evidence-free, panglossian, just-so-story loving adaptationist,
while when it comes to psychological phenomena for which we have enormous bodies of empirical evidence, they are in a state of denial. I think it's the moralistic fallacy again:
we value music, therefore want it to be an adaptation;
we deplore violence, selfishness, tribalism, rape, and sex differences, therefore want them not to be adaptations
http://www.reddit.com/r/IAmA/comments/1a67x4/i_am_steve_pinker_a_cognitive_psychologist_at/c8ui7fp
while when it comes to psychological phenomena for which we have enormous bodies of empirical evidence, they are in a state of denial. I think it's the moralistic fallacy again:
we value music, therefore want it to be an adaptation;
we deplore violence, selfishness, tribalism, rape, and sex differences, therefore want them not to be adaptations
http://www.reddit.com/r/IAmA/comments/1a67x4/i_am_steve_pinker_a_cognitive_psychologist_at/c8ui7fp