Baltimore's Trephine returns with this menacing collection of crushingly heavy post-rock/metal,with an additional percussionist who bangs out polyrythms on junk found on the city streets ! Purely instrumental math-rock with teeth, this plays like some rabid , Slayer-ized version of Don Cabellero...The Fucking Champs meet Mastodon...Clutch and Moe Staiano's Moe!kestra!... or something like that. These guys pull off some obtuse, angular riffage and jazzy beats but keep this firmly rooted in the HEAVY, balancing all of the abrupt shifts, propane-tank percussion, and complex shredding and abstract structures with some serious metalcore riffs, swaggering Southern sludge ,and over-all evil-sounding crunchiness. This is so good, and yet another excellent release from the up and coming Public Guilt label. Suitably creepy artwork from Stephan Kasner.