I think we might be on the same page, if I’m understanding you correctly. Some seem to think that the point is “the only jobs left in a world of automation and AI will be creative jobs, so send your kids to art school so that they can be gainfully employed and competitive”.
That’s not my reading of the situation (which colors my interpretation of your words). My reading is that chances are that future generations won’t be gainfully employed and will have a lot of time on their hands. Unless they can pick up the skill of creativity, they will suffer lives of boredom. Boredom kills.
There are a lot of ways that the world of automation and AI might unfold that range from the apocalyptic to the sublime. My ideal conception is a flowering of creativity, where humanity has confronted the blank canvas of boredom and filled it with beauty. Or if not beauty, at least cool shit.
You started off this essay with sheet music. Once upon a time, in the days before families gathered together in the light of their TV screens, families would sit in the parlor and play music with and for each other. They might use sheet music or they might play songs that they had learned from their friends or parents. In one of the futures that I envision, we return to this practice. Maybe that’s a corny idea, but keep in mind that it (where “it” is some sort of cultural activity or creation) doesn’t have to be good, it only has to be fun.