I remember a short story about a future where advertising jingles were the only type of music still performed. If I recall, one musician rediscovered the idea that music could exist by itself and sets off an artistic revolution. I read the story ~35 years ago but it could have been older. Does anyone know the title or author?
Tunesmith by Lloyd Biggle Jr.
Erlin Baque is the last true musician on Earth. Commercial jingles have replaced real art. The Performers' Guild enforces mediocrity on pain of blacklisting. . . But Baque has one weapon his enemies cannot resist: his music. (from Pastebin)