Seven Sisters of Sleep - Opium Morals (2013)

Featuring brutal riffs, tortured vocals, and an extremely heavy atmosphere, this album is bound to be one of the heaviest of 2013. It perfectly blends grindcore with sludge in a very menacing and violent way. Like the new Nails release, it's pretty chaotic and claustrophobic, but there's definitely good music happening behind the thick wall of fuzz. If you're into bands like Napalm Death, Melvins, Acid Bath, Rotten Sound etc. then this album is sure to please your ears.
9/10