as their respective partner "leav[es] with the tide", comparing the ebb and flow of a relationship to that of tides. The album's subsequent songs focus on separation, with lyrics written in past tense. "Unfold" comprises individual notes and pauses, and incorporates tension in its off-beat composition, while its percussion increases in tempo before the accompanying instrumentation follows suit. It features deep house beats, resounding guitar harmonics, rhythmic hi-hat, and a dominant breakbeat. Croft describes "Unfold" as a "gentle reverie" and "quite an emotional one." On "Swept Away", she and Sim express fragile declarations of love. They originally wrote the song as a ballad before Smith reworked it with a Roland TR-909 drum machine. "Our Song" features a rewinding guitar sample, looped feedback, and pulsating percussion buildup. It is about the love shared in a friendship; Croft and Sim wrote it to address each other and the band itself: "We've never done that before; we're always addressing the songs outward. It's about the function of love and the love of friends. It's important." Title and packaging The album's title was inspired by their idea for the cover artwork, which depicts an iridescent oil spill in the shape of an "X", a variation on the band's white-on-black "X" logo. Croft compared the mixture of oil and water to her holistic view of the band, saying in an interview for Grantland: When they informed them of the title, their record label's American office e-mailed them about there being a "Coexist" bumper sticker. Croft said that "I know it has that connection, but it felt like the right word. It's cool, I guess? It's a nice message? Everybody getting along?" Marketing and sales Coexist was released worldwide by Young Turks. In May 2012, the xx played three intimate shows in London, where they previewed material from the album. They also performed on the Mini Stage of the San Miguel Primavera Sound festival in Barcelona, Spain, on 31 May. On 17 July, "Angels" was released as the album's lead single. It charted at number 46 in Australia and at number 38 in Belgium. The second single, "Chained", was released on 7 August. On 28 September, the xx performed the song, along with "Sunset", on Later... with Jools Holland. A remix of the song was released as a single to iTunes on 11 March 2013. "Sunset" was later serviced to American modern rock radio on 28