The Blood Brothers (MUSIC) Suggesting that music lovers of Seattle go to a Blood Brothers show is about as pointless as telling Anna Nicole Smith that she’s dead. You already know all about the Blood Brothers and their hyperactive, pioneering, snotty prog-meets-hardcore sound that, when played live, turns the room into a dripping, sticky pit of flailing limbs. Right? Right. I’m sure you do. (The Showbox, 1426 First Ave, 628-3151. 8 pm, $13 adv/$15 DOS, all ages.) MEGAN SELING