Down two members — but up one exclamation point — Panic! at the Disco return to the surging electro-emo sound that first made them Hot Topic heartthrobs on Vices & Virtues. The choruses are catchier than they were on 2008’s overblown Pretty. Odd. (Good luck forgetting ”Memories.”) But it’s easy to miss ex-guitarist Ryan Ross’ acid-wit lyrics; minus his touch, frontman Brendon Urie comes off like just another whiner with impressive guyliner. B?