[throwaway4aday]

I think that will be true for "mass produced content" things like music for specific activities or uses e.g. workout music, background music for TV/movies/games/restaurants. I think there will still be a lot of people involved in higher value productions. They will definitely be using AI generated content as a multiplier but will likely add their own composition and tweaks to it in order to make it fit their vision. The first step in any design process will probably be to generate a bunch of related content kind of like 3D modelling artists dig up a bunch of reference material before starting their work except the reference material will probably be able to be directly incorporated into the finished piece. There will also be a bunch of purists who do everything themselves, this is obvious since there are still a lot of people who knit their own sweaters.