MONDAY >> Swedish indie popsters Peter Bjorn and John will play a sold out show at the 9:30 Club, accompanied by the “triple keyboard action” of Brooklyn’s Au Revoir Simone. Honestly, if they promised triple “keytar” action, we would sell our souls for tickets. >> The Alphabetical Order and Summerbirds in the Cellar bring on the rock at DC9. $8 TUESDAY >> Embarrassing secret #12. An ex-girlfriend once dragged us to a Third Eye Blind…