A breezy, sophisticated leap forward for the L.A. indie-pop band. Refining the primal thump of 2010’s Gorilla Manor and wide-open anthems of 2013’s Hummingbird, Sunlit Youth is a lean, polished album that folds soft rock (“Dark Days”), electro-pop (“Masters”), and soul (“Coins”) into the band’s passionate—and passionately eclectic—sound.