^^^ I was trying to find a link to that shortly before I left work. Worth watching if you can.
FWIW, my money's on music appreciation being part of a broader human trait - recognition of patterns and symbols. We humans love to find patterns in things: mathematical sequences, faces of Jesus in pieces of toast, etc.
Whichever musical culture you're brought up in, you'll become accustomed to listening for certain kinds of patterns: a five, seven or twelve-note scale for example. In some musical cultures, rhythms will be the dominant thing; in the western classical tradition, polyphonic harmony plays an important part.
To make a piece of music 'good' it must be sufficiently complex (to a someone listening within a particular learned set of patterns) to make it so non-obvious as not to be dull.
Go beyond a certain level of complexity within the dominant meme, work within a different pattern/symbol tradition, or throw out the rule book completely and most of the rest of the population won't be able to follow you as they won't know how to begin to interpret it.
The development of jazz from 1920s 'trad' jazz (Louis Armstrong) through bebop (Charlie Parker) and cool (Miles Davis) into the free jazz movement (Ornette Coleman) is a good example of the exploration of different pattern models within a single musical tradition over the course of little under 50 years.
Frankly, you can apply the same kind of analysis to appreciation of beer (as it's the same underlying principle)
If there's any other hard-wired appreciation of music built into the brain, it's massively swamped by culturally-led learning.
