Quiet Sun was a four piece conceived in 1970 at Phil Manzanera's alma mater, Dulwich College; his fellow band members were Bill MacCormick, bass, Charles Hayward, drums, vocals and Dave Jarrett, keyboards. After a brief tour and no record deal in prospect, the band split and Manzanera joined Roxy Music. By 1974, riding high on the Roxy wave, Manzanera secured a deal for his debut album Diamond Head. What he didn't mention was that he had reformed Quiet Sun and was splitting his daily 12-hour studio time between the two projects. This reissue of 'Mainstream' is in book form with new photos and memorabilia as well as bringing together all early demos in one place.