Hi I would like to know what's the best (most precise) data base for tagging the genre of metal music albums. As you may know there are a lot of different sub sytles inside the Metal music: Progressive, Power, Viking, Black, Death, Melodic, Epic,... I would like some way to set automaticaly the genre or even write it in the comments tag to get an accurate result just like I could find it in Metal Archives 
. Many Thanks.
PS: The best I've found by now is discogs style information but it's not stored in the genre field 
I think that dano has the Dark Tranquillity's Character cover art in his profile image, so maybe he knows it 