Mark Morton

Mark Morton — born in the United States in 1972 — is Lamb of God's guitarist and principal composer, and one of the authors of the American groove metal vocabulary of the 2000s. His riff is the band's signature. Morton writes lines of heavy syncopation, resting on pauses and rhythmic displacement rather than constant speed — a vocabulary inherited from Pantera and reprocessed with darker harmonies and less predictable structures. That writing is what defines Lamb of God: aggression built on groove, not on accelerated tempo. He was there at the band's founding, still as Burn the Priest, in Richmond, Virginia, and wrote or co-wrote the essential repertoire across more than ten albums, including Ashes of the Wake (2004), Sacrament (2006) and Wrath (2009) — records that took a band with no clean singing and no commercial concession into the American charts. He also keeps a solo career, working with blues and rock with his own and guest vocals — a repertoire that reveals the musical grounding behind the heavy riff, and which few guitarists in the genre have the interest or the means to expose.