If you ask me, RFR here do with black metal what Obituary do with death metal. That being said, there is a solid amount of DM influence here. But yeah, this is black metal for those people whose dicks get harder the bassier the music is. If you want it deep, muddy, murky, the lowest of the low end, mid paced and evil, well here you go. On MA it says the lineup for this album consists of someone on "all instruments, vocals" and another for just "bass". So I'm not sure if there even is any guitar here. If there is, they wanted it to be as bassy and rumbly as possible.
Mother****ing solid doomified and deathy black metal and listening to it will make you a little less of a poser.
Where music can be murky, this ****'s the god damn Tigris-Euphrates