Sumac's main core consists of Aaron Turner (Isis, Old Man Gloom, Mamiffer) and drummer Nick Yacyshyn from Baptists. Bass player Brian Cook (Russian Circles, Botch, These Arms Are Snakes) also joined the fold and ultimately laid the pulse for the group's 2015 debut entitled The Deal, a collection of steamroller crushing heaviness and methodical free-range technicality. The album was recorded with Mell Dettmer (Wolves In The Throne Room, Sunn O)))), mixed by Kurt Ballou of Converge at Godcity Studios and mastered by Mikka Jusslla at Finvoxx Studios in Finland.
Across the span of the album's six songs, Sumac takes multiple turns through unexpected territories: textural hums, math-metal, harsh noise, Caspar Brazmann-inspired free-jazz. But all roads lead to a destination that epitomizes the members' passionate dedication to heavy multi-dimensional music bludgeoning riffs, tension-building structures, disorienting seismic shifts in tone, timbre, and tempo. If there was a simple way to summarize The Deal, it's that it's an incredibly smart and emotionally sophisticated record, which may initially appear as a single minded brutish assault. Sumac is not suited for cursory listening.