[bryanrasmussen]

What is it that makes it less interesting to you - what about graphical arts, sculpture, architecture?

Given your list I would suppose maybe you like things with a complex narrative, or as is the case for me - music with clever/complex lyrics.

So you could look for music that has a complex narrative, but obviously that helps you find music best suited for you and not helping you build an understanding of what is appealing about music or what makes for 'good' music artistically speaking.

Although maybe you can jump from music appealing to you to a broader feeling for music in general.

Is there some music or musicians you find more appealing than others?