Some light-hearted reading at https://www.classicalarchives.com/newsletter/archive/20200906.htm
“Music is said to be the common language of humanity. But is it something particular to our species or could extraterrestrial beings also have music?
The ability to hear can be a life saver for organisms that live in cluttered environments (e.g., forests) where sight lines are short. You might hear danger before you see it.
For humans, being sensitive to sound has permitted language, which is perhaps hearing’s greatest app. Indeed, language is so useful for disseminating information that we can assert its existence among the cosmos’ brainier beings. Convergent evolution makes the case.
But music?
There seem to be three general suggestions to explain our tuneful natures. The first is that, frankly, music is a superfluous artifact of other abilities, such as understanding speech. Because we have sophisticated systems to hear and interpret verbal communication, we also like certain rhythms and tonal sequences. Harvard psychologist Steven Pinker wrote that music is “auditory cheesecake” – a pleasurable artifact. You enjoy music because you can.
A second idea is that music arose because it was a social glue that helped our ancestors bond with one another and with a group. Song-and-dance displays are useful for keeping kith and kin together, and perhaps intimidating others. You like music because if your predecessors didn’t, they would have been obliterated by another tribe that was more cohesive.
A third idea is derivative from the ideas of Geoffrey Miller, an evolutionary psychologist at the University of New Mexico who argues that music’s utility is to signal “fitness” to potential mates. If a male has musical talents, that’s a useful mechanism for giving females insight into your genome. To play an instrument, to sing, or even tell a joke demands complex neurological performance. Evolution has tuned females to read such displays as indicating genomic health, and a favorable prospect for any eventual offspring. (As an aside, this theory has the ancillary benefit of providing a provocative explanation for why 25,000 teenage women stormed a theater in Times Square when Frank Sinatra appeared there in 1944.)