Pink Floyd are one of the most innovative and enduringly successful bands in history. 1973's Dark Side of the Moon, though far from the first concept album, established a new model for quasi-symphonic, long-form investigations into the human condition. It is a record of thoughtfully poignant lyrics and some of the most powerful, genre-defining rock music ever made. Roger Waters, Rick Wright, Nick Mason and the tragically brilliant Syd Barrett fused English whimsy with electrifying voyages through inner and outer space. Their underground gigs are the stuff of psychedelic legend, but between 1968 and 1971, with Barrett replaced by David Gilmour, their sonic inquiries were never braver. Some were delivered instantly while others were revealed slowly, but all played crucial parts in rock's development. During the 1970s, the music matured as the messages darkened. While Floyd continued to prove that emotional weight can be forged from deceptively modest arrangements, the band's live spectaculars reached a pitch of technical complexity and extravagance none has matched.With insightful analysis and witty objectivity, Richard Butterworth appraises afresh Pink Floyd's official recorded canon, from 'Arnold Layne' to The Endless River and beyond to 2022 and the first all-new Floyd music for 28 years.