Based in Los Angeles, Tetrarch are the new breath of life in technical metalcore. Their Napalm Records debut, Unstable, is out April 30 on Napalm Records and they are featured as one of our two covers for issue 57 with an exclusive, alternate-version flexi of their album track “I’m Not Right.” Get the issue here. This is a band like Slipknot, Metallica, and even Korn who have the potential for serious longevity because the songs feel timeless and immediate. It’s impossible to not be hooked in by the giddy dichotomy of heavy melody that Tetrarch have nailed already on album number two. “We’ll never be the heaviest band in the world,” says guitarist Diamond Rowe of the band’s sound. “We’ll never be the most melodic band in the world. I think the fact...