Just by virtue of how the human brain transducers auditory signals versus visual signals there is a big disparity in being able to automate music production. We fill in many gaps for vision but to a much smaller degree for music. There's a lot less room for AI to fudge the difference between human and generative model derived music.

It will be interesting to see how this all plays out as I'm sure AI will found some use in music that has broad application and influence. But it will take a lot longer than generating pictures