I think your starting definition of value is basically worthless. Value is not about what things cost to make, but what people are willing to pay for them. You reached this conclusion by the end of your comment, but I think it's important to emphasize. My friend group has created incredible value with suno, mostly making meme songs we forget about after a day, but every once in a while we create lasting memories that have real emotional impact. It doesnt matter that anyone can do that, I dont think that cheapens the output at all.
The value you are getting is not from the music as an artistic product, but from the social connection and entertainment it offers your friend group. The meme songs and lasting memories you are getting are fungible with regards to other entertaining and emotionally salient creations you and your friends may share with each other, and not with regards to other pieces of music.
My comment was mostly that it lacks value to _others_. It was probably worth to your friend group roughly the time and money you spent on it. Nobody else is ever going to care.
So like 99.9999% of all music and art?