songs which explicitly refer to their own inability (or that of music/song in general) to assuage grief/sadness, or elicit emotion in general

I know this is a specific question, but I was hoping someone could help me out with it for a project I'm working on. Can be any genre or simply a part of a song. Just need a few examples.

https://www.youtube.com/watch?v=gzJFv5X42KQ