Before hitting it huge with their 1973, The Dark Side Of The Moon album, ‘The Floyd’ was undergoing a great crisis of songwriting and identity trying to extricate itself from the influence of Pink Floyd’s leader, Syd Barrett. As infamous these days for his bout with madness and then reclusiveness post his Floyd years, a cult has grown up around Barrett, with many people divided, as Kopp makes clear, over what version of the band they like best, pre or post Barrett.