> Almost all metalheads adore Black Sabbath This implies that, if there are many different subgenres with little overlap in audience but they all agree on Blac

> Almost all metalheads adore Black Sabbath This implies that, if there are many different subgenres with little overlap in audience but they all agree on Black Sabbath (and little else), drawing conclusions from "listens to Black Sabbath" is doomed to fail. "Listens to Black Sabbath" simply isn't particularly specific, and those subgenre-heads are all about specifity. Same as that you can draw a lot more conclusions from "likes listening to Number Nine" than from "likes listening to Yesterday"