I still stick to my 2 categories, with new definitions: Minimalistic black metal and the rest.
"Drums were never fucking important for Darkthrone, not for me at least, and in black metal, drumming is not important, drumming is just supposed to be there, and guitars are the most important [...], no fucking third, fourth, fifth guitarist solo or guitar upon that or synthetized stuff, whatever... If it's cold enough and if it's dark enough, and if it's real enough, black metal feeling is supposed to suit through material, so we did."
- Fenriz