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Death metal is heavy metal taken to extremes: the heaviest riffs played at the fastest speeds over drummers playing ridiculously quick beats. Bands like Morbid Angel helped push death metal, in its infancy, to greater feats of physical prowess, led by guitar virtuoso Trey Azagthoth and one of death metal’s fastest drummers, Pete Sandoval. It was an archetypal death-metal band, down to a logo sporting both an inverted cross and a pentagram. Lately, however, Morbid Angel has parted ways with the traditional lyrical fare of Satanism. These days, it fills its songs with Sumerian mythology and yoga spirituality. Morbid Angel speaks in interviews about mysticism and “the energy of the universe,” a far cry from the time when the band’s lyrics read “chant the blasphemy/mockery of the messiah/we curse the holy ghost.” But it will be kind of hard to tell the difference when the growling begins. Morbid Angel plays with Psychotogen, Tortured, Frown Upon, and Dark Haven at 7:30 p.m. at Jaxx, 6355 Rolling Road, West Springfield. $17. (703) 569-5940. (Jacob Long)