Music: Looking For Meaning In All The Wrong Places

Does music have any inherent meaning all on its own? “Can the compositional process of any music, from 12-bar blues to spectralism, be “publicly intelligible” without some kind of grounding in its conventions? If you’ve never heard a nursery rhyme in your life (difficult I know, for arguments sake imagine an extraterrestrial sentient being), wouldn’t it seem baffling on first listen?”