The Akron, Ohio-based duo The Black Keys is well known for its concentrated, hermetic approach to recording, hunkering down with rudimentary equipment in an unfinished basement or commandeering the floor of a vacant local rubber factory to create terse but soulful rock that seems to have time-traveled into the pair’s amps from some long-ago radio show. But guitarist vocalist Dan Auerbach and drummer Patrick Carney now admit they were ready for a change of scene—as well as some company. So when they got the opportunity to work with Grammy Award-nominated producer musician-provocateur Danger Mouse, a/k/a Brian Burton (Gnarls Barkley, The Gorillaz, The Grey Album), they agreed, for the first time, to leave their familiar environs.