I disagree, I think a music's greatness does depend on genre. It's like that scene in This is Spinal Tap! where they started to play Jazz music at a concert and everyone gavr them a "thumbs down" so I think respect for an audience is key. Other than that, I don't think there is one set codified standards in identifying what is good and bad music. I think the best music though is found in some of the most simple harmonies and chord progressions, the music of Phil Spector, Motown, The Clash, Nirvana, M. Ward....things along those lines.
- Preston