Here’s a couple bands taking sludge and mixing it with some black metal style guitar work. Primitive Man are slow and punishing in their assault. The music pours out in a thick ooze, with some cold black metal guitar parts here and there to provide a little extra despair. The bass and drums act as a slow motion demolition crew, while the guitar saws and sways under the force. Hexis mix black metal with sludge elements in their song “Excrucio.” The black metal comes in the cold swarm of bees guitar sound, which has a hypnotic element that is offset by the thud of the drums. It all eventually washes into feedback and heavier, more deliberate thud. 

 –M.Avrg (Halo Of Flies,