What is "good" music?

If we're both looking at the same red then yes, it is the same on a universal level. Whether or not we both perceive it the same is irrelevant to the bottom line. But that's the point, good is good as bad is bad. Whether or not I enjoy something doesn't make it good, it just makes it enjoyable to me.

I mix up some grays and greens, and some reds and browns.

I can't totally see appreciate the same thing the same way. If what you said were true, you should be able to universally give a song an accurate score on how good it is. If you can't, then you can't say if it's good music or not. Because that's only opinion.

And where I set my standards, was that post I made on the first page. But what about other people's standards?