@alexatpos . This could be quite the rabbit hole. Mostly a joke, if a poor one, but, for me, most simply, it's the snobbery and, perhaps in clearthink's words, prejudice and self-righteousness. "Worth" has little to do with my opinion. "I'm a better, more complete, person, because I listen to X. You are a mindless, inattentive, simpleton and follower, because you waste your time spacing out to Y and won't or can't appreciate X." Or, perhaps, "You just need Bose cubes, because you listen to Y. Anything better is wasted on your dumb ass."
Anyway, there absolutely are combined elements of relativism and subjectivity in viewing the "worth" of music or art. To go further, one might spend some time examining the purpose of music, if there is one. Is it to move the soul, to evoke an emotional response, to get closer to God, to provide an escape or distraction, to feed some glitch in the lizard brain, to fulfill pre-destined expression of a mathematic imperative, to enhance communication, etc.? Is that purpose static across time, cultures, and/or multiple areas of human development (e.g., politics, technology, mathematics, etc.)?
So, sure, there's bad music and good music. Thought that might be clear in the "hypocrite" comment. I'd like the low-res vocal auto-tuner to be retired, for example, but I don't think folks who like it are beneath me.
As to the OP. John Coltrane, A Love Supreme.