they should know immediately what it sounds like it has highlydistorted guitars shrieking vocals etc  but what defines black metal apart from other forms of music that ALSO use distortion and screaming punk rock and indie may well have ideologies but black metals different values are easily identifiable and unique you all seem intent on giving black metal a disservice by simply labelling it as angry music if you cared about the genre you wouldnt and LOL at thinking burzum has no ideology if you are the kind of person that thinks that then you dont know enough to edit this article the problem with  of wikipedia  To someone who is a nonlistener the fact that black metal has an uncompromising ideology is rather useless as a description  why wouldnt they want to know   also nice to see the page locked go listen to cradle of filth you complete tits youre all untermensch