(Highbrow, Lowbrow, No-Brow Music) The world needs more events like this one. Operatica Electronica, put on by Seattle Opera's hip, young opera club, Bravo!, introduces regular show-going folks to opera. To foster greater awareness of our world-class local opera company, this night mixes performances by opera singers with music by poptronic artists IQU and DJs El Toro and BlueBlueDay. Costumes, music, and all kinds of culture will be on display. (Showbox, 1426 First Ave, 628-3151. 7:30 pm, $5/free for Bravo! members.) JENNIFER MAERZ