So when I drag a "Caedmon's Call" song onto the player that got somehow tagged as "industrial gothic" (real case example of CDDB not having the right thing) it could tell me that all the rest of my Caedmon's Call is tagged as "Christain" and offer to change the genre for me.

You'd need some pretty powerful "Don't show me this again" technology for that, though; if Caedmon's Call ever did perform some industrial gothic, perhaps at the MTV awards or something, it'd soon get annoying to have to answer the question each time. And if not Caedmon's Call, there are plenty of bands whose genre morphs pretty dramatically over the years: The Shamen, for instance, who went from indie rock to ambient to euphoric house.

Peter