For all their experimentation and innovation, the albums Evan Mast and Mike Stroud release as Ratatat show a very classic musical evolution, cementing familiar, recognizable characteristic traits while also reaching restlessly beyond them in different directions for new and personally exciting elements. It's a process beneficial for both artist and listener, and these two guys achieved a particularly successful balance of electro insurgency, traditional rock instrumentation and eclectic influence. That formula remains in place for the excellent and somewhat whimsical LP4, while once again offering something a little different than what came before.