There is no objective in art.
Who says so?
Art is only meaningful because of what the artist puts into it and what the observer takes out of it. Without people to interpret and define art for themselves, art holds no more significance than what it is physically; a combination of elements.
Without humanity, what is there to decide that "combination of soundwaves
a" is better than "combination of soundwaves
b"?
Maybe I boiled it down too far, but hopefully that makes sense.