Personally I have for a long time now been fascinated by the complexity that results from simple computations - all of nature around us is an example of it, and who would claim that nature is not beautiful? As an example, I wonder what the world looks like for the spiders in my cellar. Presumably, the cellar is a whole microcosm that looks incredibly strange and alien, if we were to look at it from the perspective of a spider living there. Lot's of complex computations go on there, without an explicit brain being involved. We humans are completely oblivious to it. I hope some biologists at least have looked into such things, though. But there are so many "small worlds" that I doubt biologists can cover them all.
As for music, I don't think it is a god-given thing. Rather, I think it was a by-product of evolution. Because of the brains ability to draw analogies, sequences of tones invoke associations in the brain. It is only an example of the brilliance of evolution that it managed to use this by product for something useful.
Reading that article made me expect a future in which a musician will not be known for a particular composition, but for the algorithm he devised for creating music of a particular flavor. Could be fun, no?