The most dance-floor ready album by Caribou yet? Yes, of course, London-based songwriter Dan Snaith said recently from Austin, Texas, where Caribou had stopped to perform during its current tour. There’s no reining in the man behind one of the most shockingly powerful live shows I’ve ever seen at Bottom of the Hill -- listeners have been enthusiastically embracing Caribou’s new Swim (Merge). One can only assume their ears are well attuned to the onetime Manitoba mastermind’s electro-esque indie -- Swim simply foregrounds the beats to beautiful effect. And if you’re ready to take the plunge, Caribou performs two nights, May 23 and 24, at the Independent.