The first answers are and I'm sure Nelson Goodman would be glad to hear this nothing. thing you're going to find that we Mozart lovers have in common is that we love Mozart. And the only thing you will find in common when you look over all that I love is that I love it all. Nominalism, i guess I am not going to argue for these answers here. I have previously given a sketch of an argument for the proposition that each of us has what I call "an aesthetic personality" that exhibits no essential characteristic My idea was and is, that attraction to some work, some other work with exactly the same characteristic may well fail to attract us