Okay, so it's not exactly metal—and I may suffer the slings and arrows of outrageous fortune for implying such—but Española Valley crew Hartless is a cover band that reprises the work of prestigious pop-metal acts like Heart, Scandal and Foreigner. They have a gig on Sunday, April 5, at Sister (407 Central NW). Hartless focuses on seamless delivery of prodigious chops and an acute sense of mimicry engendered by founding members Tess Fresquez and La Rain Valdez.