From the thunderous opening kick drum of “Sleep on the Floor,” folk-rockers The Lumineers are in fine rollicking form on their sophomore album. There are plenty of heart-swelling, infectious tunes to dig into here: The rowdy, piano-driven “Ophelia” and country-tinged “Gun Song,” with its rousing crescendo, will satisfy fans of the sing-along. But their subtler turns are where much of the beauty lies. "My Eyes”—with its delicate, reverb-soaked guitar strums and gentle strings—is a quiet, passionate triumph.