(MUSICK) Tonight concludes the second annual experimental-noise marathon known as Wooden Octopus Skull. Fest survivors will prostrate themselves before the devious drilling, droning, and Sturm und Dranging of sonic sadists Wolf Eyes, Double Leopards, Yellow Swans, Dead Machines, Hive Mind, and the Cherry Point. These performers are among the most refined practitioners of channeling misanthropy into nuanced slabs of cranium-scraping frequencies. Come get tethered and abattoired. (Conjuring Room, 2203 Utah Ave S, 545-2800. 8:30 pm, $18, all ages.)