In my opinion you somewhat contradicted yourself by saying that you didn't mean just sub-genres then you went off naming sub genres of metal. I Like metal and all but to be honest there isn't much variety, metal is metal to me, well, lyrically i guess it's different.
Anyway I think Folk is probably the broadest genre. But you know what I consider Folk could be something totally different to you due to (my opinion) genre being in the eye of the beholder.
If I wanted to go out on a limb I could say Grunge, but I'm sure that would spark some hate. Lyrically it's all the same for the most part but musically it's pretty broad. Lke what do these two bands have in common (Other than them both being from seatle)?
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