Pink Floyd were one of the biggest bands on the planet when they cut Wish You Were Here in early 1975. The Dark Side of the Moon turned the band into a stadium rock act, but their thoughts kept going back to Syd Barrett. He started the group and wrote all their early songs. They owed their tremendous success to the guy, but nobody had seem him in years. They all agreed their next album should pay tribute to their founder. The album starts and ends with the nine-part epic "Shine On You Crazy Diamond," which looks back at a time when Barrett "shone like the sun." The title track is another tribute to a lost friend, while the album's other two songs ("Have a Cigar," "Welcome to the Machine") are biting attacks on the music industry. The album is a masterpiece, and it marked the last time that Pink Floyd truly worked together as a band. By the time they cut Animals two years later, Roger Waters had taken over. They continued to make great music for a few more years, but things were never the same.