If you take your sludge metal laced with a dash of psych rock, Kylesa could very well propel you to a state of nirvana within two mildly math-y measures (an impressive feat for a band that takes its name from a Buddhist term for a delusory mental state). Spiral Shadow, the Savannah, Georgia-based bands most recent release, is a slightly more polished affair on the surface than those previous, but no less blistering underneath that serene sheen, with dueling drums and a triumvirate of vocalists alternating leadership roles that lead down paths both doom-laden and celestial-minded. With Lesbian, Book of Black Earth. HANNAH LEVIN
Fri., Dec. 3, 9:30 p.m., 2010
