Music is an expression of what is in our souls. Without God, our souls can only express sadness, confusion and anger.

I would say, "No God, no life". Music is only part of life, as a medium to invigorate in the splendid blessings of our Heavenly Father. The harmonic rhythms, that vibrate in numerical ratios, are only a tiny complexity of the vast instruments our sapient creator has left us with.