On the eve of the mammoth Scion Rock Festival, Neurosis' iconic vocalist and guitarist SCOTT KELLY makes an appearance at the East Atlanta Icehouse to play a somber and slowly burning set of acoustic songs. Expect an evening of long, haunting and layered textures that require less electricity to wield than the metallic, scorched-earth din of Neurosis but are no less consuming. The rest of the bill is filled out by a mesh of local punk, metal and hardcore acts, including Chet Knight & the No Disciples, Royal Thunder, Clay Cumble and Standing Behind You with Knives. $10-$12. 10 p.m. 543 Flat Shoals Ave. 404-577-2073. www.eastatlantaicehouse.com. And for songs from artists on the fest's bill, go to clatl.com/music.