Obsidian Tongue.

Friday, August 16 

Obsidian Tongue celebrates a decade of brewing darkly psychedelic death metal at Geno’s (625 Congress St., Portland) with the ferocious Feral, post-metal band Sertraline and the doom-y Imipolex opening at 9 p.m. Tix: $10 (21+). 221-2382. And down at SPACE Gallery (538 Congress St.), the rad brass band What Cheer? Brigade parties for the people at 8:30 p.m. Tix: $12-$15 (all ages). 828-5600. space538.org.