Oh shit you already know yours stuff eh? ALso you can find the album the same place you can find everything else friend, soulseek of course. GBK, Franisk, and Arghoslent are all great bands imo; and I don't even care about the NS shit desu. Negative plane near the bottom there is a really cool sounding reverb soaked "psychadelic" black metal band, whatever the fuck that means lol. Either way kicks ass and not very well known even by the standards here. The other pretty well unknown band on my list is Aquilus, perfect BM band if if you listen to neoclassical type stuff at all. Super underated band even by the regulars here imo. Might be a bit to prog for you though judging by your list, but you do have Nocturnus there and I'm assuming like stuff similar to Atheist. Try it out once anyways https://www.youtube.com/watch?v=NheeMq-HUpg>>104162060
Nice choice dem synths are fucking great.>>104162062
Don't forget lunar poetry, the band just can't stop making great albums honestly. >>104162080
If you love BM and only BM, yea probably. I get into basically every genre I can so its fucking fantastic for me.