What is music for? Xunzi, Plato and my parish choir
I play the organ at a parish church in Kraków and teach music theory at a secondary school. Every Sunday I see music do something to a congregation that a sermon can't, and I want to know what philosophers have thought that something is.
Two ancient answers strike me. Xunzi, in his discussion of music, says that people cannot help having feelings and expressing them, and that the ancient kings created music and ritual to give those feelings form, so that they unite rather than divide. Music orders the emotions, and through them the community. He was answering Mozi, who condemned elaborate music as a waste of resources that fed no one.
Plato in the Republic also thinks music shapes character, so much that he would allow only certain modes in his city and banish others as softening or disorderly. Both see music as moral education. Both, in different ways, want it controlled.
Then there's Schopenhauer, whom many musicians love: for him music is not a copy of anything in the world but a direct expression of the will itself, which is why it moves us so deeply.
I'd like several answers, from as many traditions as possible. What is music for: ordering us, expressing what lies beneath the world, drawing us toward God, or simply pleasure? And should anyone, a state, a church, a school, decide which music is good for us?