Look what photography did to painting. I guess it ruined painting for some people. Made it less profitable to a large degree. But people still paint. They paint modern/post modern. They paint in old styles. Even new styles. Have you seen the generation of photo realism that’s out there? Wow. People paint digitally. They paint murals.
Is music going to change? Sure. And people will invent music that AI can’t replicate. Live music, for one.