Raleigh's Horseskull recently started a bit of an Internet firestorm with a bold pronouncement via social media that declared its members were "unsatisfied with the current offering of so called 'doom metal' bands." Some local heavies took exception to this and took their complaints to the most metal place of all time—yes, Internet complaint threads. Shit-talking aside, Horseskull is what it proclaims to be—a blown-out cave-doom project with a mid-'90s flavor augmented by downtuned guitars and slow, bluesy riffs made far crunchier with effects pedals. That's kind of a silly basis for an extended flame war. With Heathen Bastard. Free/10 p.m. —Corbie Hill