100% of all music that I hear is boring. Everything bores me. This is especially true when I'm not listening to music. It's hard for me to get excited about music when I'm not listening to music. This may seem strange since I have been obsessed with music for most of my life. I have gajillions of records, tapes, CDs, and mp3s. But basically, all of it sucks. All of it is boring. It's a pain to even think about listening to music.
The question is which music sucks more. Old music or new music. And by old music, I mean everything recorded/put out before, say, 2000. That's a tough one. I have a distinct sense that new music is all derivative. But derivative doesn't necessary imply boring (or sucking). I would hazard a guess that both old and new music is boring and sucks.
What was the last piece of music I listened to that wasn't boring? That's such a boring question, I'm not going to dignify it with an answer.