Tuesday, Sept. 20; the Launchpad (all-ages), $15: Whaaaooooaaa! Whaaoooaaaa—just one of the sounds your disgusting ears will hear tonight at the Extreme Music Festival, where morbid black metal and thrash will consume all who embark upon the Launchpad. This dark horror will result from performances by a variety of bands new to the black arts, as well as Swedish dark masters God Dethroned and Swedish/Greek/French pan-European overlords, Nightrage (not to be confused with '80s hair metal band Night Ranger, who would probably be severely augmented if they were to ever encounter Nightrage). You might feel a sense of foreboding as your brain is aggressively disassembled by a bloody onslaught of warp-speed shredding and drumming combined with incoherent, but surely evil, incantations which will come whence forth from the song-master's inner sanctum. Only the dungeons of hell and Warlock guitars could create such cacophony. If, like me, you've heard of the madness which is Northern European black metal and desire to see the massacre as well as its stateside counterpart for your ugly selves, throw the horns, get some goddamn ear plugs and join the unholy festival. Uhhhhhhhhhwwaaa, whoooaaaa, ha, ha, ha!