Radio music will be almost entirely AI generated by 2035.
I am faithful that humans will continue to be the primary composers, performers, and tastemakers of music even when AI tools are involved, because music is simply fun to do for people who do it. I know I'm simply not interested in giving up my passion even though an AI could do it, and I think most musicians are with me on that. We do it because it is worth doing.
But as far as radio pop music is concerned, I think that listeners will eventually be conditioned to prefer "better than real" (but really more polished than real life) music, just like we have with modern record production, particularly auto-tune, drum sample replacement/augmentation, vocaloids, virtual analog plugin software, compression and saturation, and sample-based electronic music. And once that happens, it'll be cheaper and more predictable to ask an AI to spit out a song than to pay human producers to do it.