Some of the original Norwegian black metal musicians believe that black metal does not need to hold any ideologies. For example, Jan Axel "Hellhammer" Blomberg of Mayhem has said in an interview with "Metal Library": "In my opinion, black metal today is just music. I will tell you that neither I nor other members of Mayhem never really were against religion or something else. We are primarily interested in music." Although rejecting the idea of "Christian black metal", Satyricon's vocalist Sigurd Wongraven stated in the "Murder Music" documentary that black metal "doesn't necessarily have to be all Satanic as long as it's dark".