Bastille construct songs like modern skyscrapers: Their melodies are epic, but self-contained; their rhythms are sturdy and engineered with precision; their hooks shoot skyward, with gleaming surfaces that can be blindingly beautiful. The London quartet combines arena rock and moody synth-pop, with carefully placed lyrical references—ancient ruins bathed in ash, a hapless noir heroine—that add a bookish edge to their widescreen anthems.