"But in a world where music can be saved, music itself isn't needed to save the world"
I have no idea what this is supposed to mean. Is he just saying he cares about music itself more than saving the world? If that's the case I think
"in a world where music itself can be saved, music isn't needed to save the world"
Or
"in a world where music itself can be saved, music doesn't need to save the world"
...would be better.