The songs on
xx are composed around a framework of basslines and beats, while incorporating simple guitar riffs for melody, rhythm and
texture; their melodic notes are separated by
rests. Croft said the band's style of instrumentation became defined by the limited equipment they originally used: "My guitar sound pretty much came from discovering there was reverb on my little practice amp and really loving the mood it created." The loudest song, "
Intro", is a largely instrumental recording with
double-tracked beats, distorted keyboard,
non-lexical vocables and a guitar riff. Songs such as "
Crystalised" and "
VCR" begin with a melodic
ostinato and some understated sounds, including a
xylophone on the latter, before leading to quietly sung verses. Croft and Sim exchange verses on "Crystalised" while backed by the sound of drum stick clicks and basslines before the beat is heard. On the austerely arranged "Night Time", Croft sings its first two minutes over only guitar and bass before its beat develops. "Fantasy" is highlighted by a
shoegazing guitar sound. While McDonald observes a predominant R&B element, Russell feels the xx's music evokes the early
hip hop records he listened to when he was young, as they are often limited to vocals, samples and beats. Music journalists, however, infer from
xx that their influences are
alternative rock acts such as
Portishead,
Young Marble Giants and
Cocteau Twins, the last of which Croft said she had never heard before the album was released.
The Scotsman describes
xx as a minimalist, melancholic
indie pop record that draws on elements from
electronica and R&B, as well as
The Cure and other alternative groups. According to Sarah Boden of
The Observer, the album's unadorned,
dream pop love songs are reminiscent of Cocteau Twins and
Mazzy Star, because they feature low tempos, moody melodies and rhythms influenced by R&B and
dubstep. Their
arrangements have what
Neil McCormick calls "a very British, industrial aspect", somewhat similar to the
dub-inflected
post-punk sound of the English producer
Martin Hannett and his work with the band
Joy Division. Both Croft and Sim said their combination of seemingly disparate influences could be attributed to the variety in each band member's music collection.
Lyrics On
xx, Croft and Sim touch on themes of love, desire and loss in their songwriting, which Croft said has "always been based around emotions, right from the start. My favourite songs are usually quite sad and I think heartbreak is something that so many people can connect with." Like Croft, Sim said he wrote much of his lyrics at night when his emotions ran "a bit higher". Because of their reserved personalities,
Robert Christgau believes they rely on a low-key, vulnerable style and exchange "ideas about intimacy as contemporaries, comrades, prospects, lovers, ex-lovers and friends". According to
NME magazine's Emily Mackay, all of the songs deal with the consuming emotions associated with first love, including the tacit intimacy on "VCR", the yearning expressed on "Heart Skipped a Beat" and the premature affection warned of on "Crystalised". Petra Davis from
The Quietus argues that the thematic crux of
xx is in the succession of songs from "
Islands" to "Shelter", each of which sees "a radical shift in perspective on a similar – perhaps a single – love story." The album's
Roman numeral title refers to each of the band members having turned 20 years old by the time
xx was released. Because of their age, many critics interpret the songs as nocturnal depictions of adolescent lust.
Philip Sherburne writes in
Spin that
xx brims with a "young lust" often found in
rock music, and recordings such as "Fantasy" and "Shelter" express a jaded yearning, particularly in a lyric from the latter song: "Can I make it better with the lights turned on". Croft vehemently denied this: "We were writing these songs when we were 17. I can honestly say I've never thought this is about my sex life." Croft and Sim, who are both gay, did not intend for the songs to be heard as romantic duets; she said they are singing "past each other" rather than to each other. Having combined their individually written lyrics, they could not definitely explain what their songs were about, although Croft said Sim's lyrics resonated with her nonetheless and enjoyed the personal interpretation it offered. "You can put them into your own life", she explained, "like, 'Oh, this is my song. The romantic situations Sim wrote of had been inspired by other people. "I hadn't really had any relationships to be working off, but I had a huge interest in life, and looking at other people's relationships around me", he said. == Marketing ==