Even though you weren't responding to me I would give a tentative "yes" to this, though there are nuances. I often like to use the analogy of games because there's less emotional baggage and because the terms are clearly defined. Let's take chess: all of the rules and goals or chess are subjective in the sense that they were invented by human minds (they aren't found in nature, independent of human minds); but once the rules and goals are agreed upon we can "objectively" judge good and bad moves based on how well they accomplish the goal of, first, not losing and, second, checkmating the king and winning.
People take the rules and goals of chess for granted, so it becomes easy to talk about the objective judgments of moves based on those rules/goals (especially in the age of computer-assisted analysis where computers play chess far better than humans can). However, when you deconstruct it it's clear that any notion of objective judgment or valuation is inextricably tied to the rules and goals that were invented by subjective minds and do not, can not, exist without them. So is the evaluation of chess moves "objective?" I'd say yes ONLY if we are taking the rules/goals for granted. To me, what seems to be happening in all of these debates about subjectivity/objectivity in art is that the objectivists are constantly taking for granted all of the subjective machinery that goes into producing the "rules/goals" of art.
This analogy maps almost perfectly onto art, and the differences are in degree rather than kind. As an example, the "rules/goals" of music are nowhere near as clearly defined as they are in chess, and we don't all agree on exactly what they are. We may, to a limited extent, be able to agree on certain fundamentals that apply within a more limited sphere of music--like tonality. We may, to an even more limited extent, be able to establish shared values and standards, especially within smaller communities where we also share similar tastes.
A key difference between chess and music is that any values and standards we create are most fundamentally tied to what we (again, as individuals and as a larger community) like and dislike. This is why statements like "Mozart's mastery of form and his melodic inventiveness are not up for a vote" strike me as absurd because it should be immediately obvious that the only basis we have for judging such a thing is the fact that a lot of people LIKE Mozart's melodies and his usage of form. If most people listened to Mozart and his music didn't trigger in us the subjective feeling of liking it (whatever form that liking takes: pleasure, beauty, emotion, aesthetic, etc.), what objective, mind-independent thing would you point to to argue for it being good? AFAICT, there is no such thing.
This doesn't mean that the objective properties of the music have no role to play in triggering that "liking" effect, and I am extremely interested in understanding what those objective features are. However, you're never, ever going to get to a full understanding of why art effects us as it does without also unraveling all of the subjective, internal, intellectual and emotional and aesthetic cognition that's happening within the human mind that's perceiving the object; and you certainly aren't going to get to an understanding of how standards, evaluations, and judgments arise without that.