I didn't get the idea for the art show from this book

Have you ever wondered what evolutionary biologists think about music? I haven't, but it turns out to be pretty interesting. I'm not on the evolution wagon, but I don't have a problem listening to opposing points of view,especially when they cover a topic I haven't put much thought into.
In The World in Six Songs by Daniel J. Levitin we get to take a glimpse into the mind of a brilliant scientist as he tries to explain (via Darwinian evolution)not only where our music came from, but why, and why it was able to survive through the genetic landslide that is "survival of the fittest." Levitin looks at many of our current day "tribal" peoples for a glimpse into their use of music for communication. Levitin theorizes that music was originally a system used for warning, threatening, and generally communicating before the development of written language. Then due to the fact that the people who could warn each other of danger managed to live longer those genetic predispositions were passed on and that thousands of years later we are watching The Killers on Laye Night with Jimmy Fallon. This is all a stretch for me, but what I really enjoyed were the "Six Songs." I assumed he would discuss six specific songs that summed up the world succinctly. Not quite, instead Levitin discusses six topics that essentially all of the worlds lyric music falls into. Friendship, self explanatory...think "I believe that we are gonna be friends." by the White Stripes. These are songs of peace and cooperation or as the author says, War (what is it good for?) Next is Joy, along the lines of Jeremiah was a Bullfrog. People like joy, that should be no surprise, so as a result we sing about it. Comfort, we all know the its okay that that guy broke your heart song, it's a universal theme of music. Knowledge, many of the earliest songs that we know of are songs teaching people which plants were safe to eat, where the local cannibals lived, which animals would prefer to eat you. This continues today, we have songs to learn the capitols, to tie our shoes, and the books of the Bible. The last 2 topics go without saying, Religion and Love. Anyone who has spent any time in an organized religion knows that music is a critical part of worship and a sense of unity for the followers of said religion. One easy to feel connected to a group of people is to share a common vocabulary of songs. Finally, Love, most songs on the radio (at least FM) are songs of expressions of love, songs of unrequited love, or torch songs (thank you Phil Collins.) Music would cease to exist if we couldn't sing about love.
So in closing, I don't care how music got to where it is today, I personally believe we serve a creative God that put it in us to create music for him. But whatever you believe I think we can all agree, music is good, and this planet would be a drag without it.