I don't think this is going to work for death metal/black metal. Here's why:
"Where does Wolfram|Alpha's data come from?
Many different sources, combined and curated by the Wolfram|Alpha team. At the bottom of each relevant results page there's a "Source information" button, which provides background sources and references."
So, it's like wikipedia, but with slicker presentation, and a smaller core of people that manage the content. Anti democratic, at least. Nice. But who is on their "team"? Probably not philosopher kings.
"How does Wolfram|Alpha compare to Wikipedia?
Wikipedia gives you pages of narrative about topics. Wolfram|Alpha computes answers to specific questions you ask, just giving facts, not narrative. Wolfram|Alpha often includes sidebar links to Wikipedia."
Well, what's a fact? LAWL
I think the only way this is going to work is if it limits itself to being a sort of front end for Mathematica.