Created during the recording sessions from their powerful 13th studio album, U2’s Songs of Innocence + is a dazzling collection of previously unheard material and alternate mixes of album tracks. Some of the band’s most personal songs to date are presented even more intimately here, including piano-based versions of “Every Breaking Wave” and “Song for Someone.” Previously unreleased tracks such as the psychedelic “Lucifer’s Hands” and neon disco-rock of “The Crystal Ballroom” provide a stirring snapshot of the recording sessions behind Songs of Innocence.