Existing theories seem incomplete, so right here’s any other one. I suppose music is a side impact of the evolution of self-awareness and love. Music does have quite a few features we accomplice with the sexual competition. It’s (historically speaking) an honest display of abilities, exploits supernormal stimuli and is attractive. But if those matters have been enough for its evolution, it’d be tremendous in other species. Instead, the song appears to be nearly specific to people.
In maximum species, presentations are flamboyant exhibitions of man or woman prowess. Every peacock targeted has the most significant, flashiest tail; there is none of the complexity or variety we accomplish with a track. Guppies appreciate novel hues in their associates, but they do now not evolve growing complexity.
Closer to human music are the songs of pure birds. While nobody might deny that most bird song is some sexual competitive signal, music complexity is not continuously related to sexual selection at all. And quite complex and ranging birdsongs, such as those of the track sparrow, may be generated using easy algorithms. Nothing in the animal world even remotely methods the complexity and diversity of human tune.
It’s also frequently counseled that music contributes to organization bonding, which will be nice for a species like ours, wherein inter-tribal opposition may additionally have encouraging evolution. And seeing that human beings are unusual in that sense additionally allows explaining the distinctiveness of song. There are masses of evidence that song does play this role. However, group choice is usually a weak pressure, while the tune is a luxurious characteristic; it is difficult to see how the previous could account for the latter.