Bone Mask checks all the boxes for a self-described sludge-doom-hardcore band. The pounding, propulsive drums; crushing guitar and bass; and guttural vocals are all there. But what stands out about the band's EP, which it released last summer, is just how unrelenting the music is. It's not so much a bludgeoning, brutal quality as it is a heavy churn that hammers the listener with thick waves, pauses, and then resumes the pounding from a different direction.
Bone Mask plays the Floated Magazine New Year's Eve Bash with REPS, The Weight We Carry, and KODIVK on Sunday, December 31, at the Bug Jar, 219 Monroe Avenue. 9:30 p.m. $5-$7. 21 and over. bugjar.com; bonemask.bandcamp.com.