Soul Music by Terry Pratchett
His father had said it was rubbish, that the future was written in stones, not notes. That had only been the start of the row.
And then he;d said things, and he'd said things, and suddenly the world was a new and unpleasant place, because things can't be unsaid.
He'd said, 'You don't know anything! You're just a stupid old man! But I'm giving my life to music! One day soon everyone will say I was the greatest musician in the world!'
Stupid words. As if any bard cared for any opinions except those of other bards, who'd spent a lifetime learning how to listen to music.
What sort of music would you describe as rubbish?