How about "AI will further democratize music"? Anyone can make music today, but ask any musician and they'll be mindblown by the idea that they can hum a melody and immediately generate a sax/percussion track matching it.
You can learn to play the guitar, and buy a guitar, but it's very hard and expensive to also learn the 3-4 other instruments you need to make a full song.
(my brother learned both the guitar and percussions; this took a lot of time and was quite expensive, if he had a tool like this he would probably focus on the guitar and just rely on this to generate a background track)
I learnt to play 3 (serious) instruments during my lifetime. Guitar, traverse flute and piano. While I dont play any of them actively today, I would still miss the overall skills I gained from learning them. Motor coordination, memory, just to name two. If I had this AI thing back then, I probably wouldn't have learnt any of them, and missed out on a lot of side effects.
Learning something difficult is rewarding on several levels. To boil it down to just the intended outcome is a rather narrow view of the matter.
You can learn to play the guitar, and buy a guitar, but it's very hard and expensive to also learn the 3-4 other instruments you need to make a full song. (my brother learned both the guitar and percussions; this took a lot of time and was quite expensive, if he had a tool like this he would probably focus on the guitar and just rely on this to generate a background track)