Hi Lokins, and welcome to the fray.
I actually thought of this too. I think what you're getting at is that it's a form of sexual selection?
Correlate the attractiveness of people with what they do. Rock stars, artists, dancers, all attract mates through arts, among them music.
Look at mating behavior in various animals. Some dance, some have songs for mating that are not used the rest of the year, some have displays. These can be related to fitness as healthy and resourceful individuals should be better that sick, malnourished etc individuals.
Appreciation for music doesn't seem at first glance to be directly beneficial to our survival. One thing that my friend suggested is that it could be a sort of side-effect of another trait that we developed. I have trouble thinking of what this trait might be.
Consider that intelligence could be a side-effect of sexual selection for creativity in mating displays, dances and songs - and again compare the attractiveness of people to their apparent intelligence.
Perhaps sex is what has made humans so different from other apes ...
Enjoy.
we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
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