(MUSIC) What happens when Europe's answer to the Postal Service (Styrofoam producer Arne Van Petegem of Belgium) hooks up with one of the anticon label's foremost beatmakers (Alias)? If recorded history is any indication, sweet, soft-centered synth pop tempered by Alias's dark, gothic atmospheres and unconventional funk rhythms. Both knob-twiddlers are masters at pushing tender emotional buttons, so bring a hanky. (Chop Suey, 1325 E Madison St, 324-8000. 8 pm, $10 adv, 21+) DAVE SEGAL