According to some physicists, the core of physical reality itself might be musical. Brian Greene writes that Music has long since provided the metaphors of choice for those puzzling over questions of cosmic concern. With the discovery of superstring theory, musical metaphors take on a startling reality, for the theory suggests that the microscopic landscape is suffused with tiny strings whose vibrational patterns orchestrate the evolution of the cosmos. The belief that music is a luxury is ill-founded. Both nature and elemental experience show that it is false.
Music is as necessary for humankind as it is for birds.
It affirms life. Ovid narrates the journey of Orpheus to hades playing his lyre and singing to rescue the soul of his wife Eurydice. Even though he found her and she followed him, he failed to bring her back. They called Eurydice. Modern sources attest equally to the life-affirming power of aesthetics.