It’s not easy to create a distinctive brand of music that the everyday listener can categorically describe as “yours,” but that’s what Brooklyn-based duo Ratatat have managed to pull off since their 2004 debut. That combination of Mike Stroud’s signature high-pitched guitar sound and Evan Mast’s fluid bass lines and break-beat drum rhythms is practically a trademark, having that rare ability to be heard and immediately attributed to these electro/house/indie rock/whatever practitioners even if one is barely familiar with them. It’s even tougher to sustain that kind of success in an instrumental genre, where ideas fly past their expiration dates even quicker than usual and bands with an innovative sound soon find those same ideas turning on them, sapped of originality and joie de vivre.