The Dark Side of the Moon is the eighth studio album by English progressive rock group Pink Floyd, released in March 1973. The concept album built on ideas explored by the band in their live shows and earlier recordings, but it lacks the extended instrumental excursions that characterised their work following the departure in 1968 of founding member, principal composer and lyricist Syd Barrett. The Dark Side of the Moon's themes include conflict, greed, the passage of time and mental illness, the latter partly inspired by Barrett's deteriorating mental state.
A transitional album on which the band moved from Syd Barrett's relatively concise and vivid songs to spacy, ethereal material with lengthy instrumental passages. Barrett's influence is still felt (he actually did manage to contribute one track, the jovial "Jugband Blues"), and much of the material retains a gentle, fairy-tale ambience. "Remember a Day" and "See Saw" are highlights; on "Set the Controls for the Heart of the Sun," "Let There Be More Light," and the lengthy instrumental title track, the band begin to map out the dark and repetitive pulses that would characterize their next few records.
The second Giorgio Moroder collaboration of Sparks' career doesn't have quite the emphasis on Moroder trademarks compared to its predecessor; he has only two songwriting credits here, while the Mael brothers take most of them alone. Still, the breakout single "When I'm with You" and "Just Because You Love Me" have an ineffable disco stomp and the requisite cymbal slaps on the offbeat, while "Noisy Boys" and "Stereo" have an experimental, laddish feel that looks past disco into '80s synth-pop and new romantic. Though disco fans can feel safe with No. 1 in Heaven, those more interested in new wave would be well served to pick up Terminal Jive first.