That makes no sense. People don't care that much about how good music or songs are. If not, why do you think the songs on the best playlists keep changing? What matters is being able to maintain the same knowledge and talk about that music or song with someone. So AI-generated music can have no value. In music, narrative isn't something supplementary. People want narratives and music is the medium for that. (But outside of Spotify, maybe this won't be the case. People aren't interested in the narrative of such music as background music or OSTs.)