Pink Floyd - embryo, 1970

"Embryo" (sometimes called "The Embryo") is a song by the English rock band Pink Floyd. It was written by Roger Waters, recorded in 1968, and regularly performed live in 1970–71, but never released on any regular Pink Floyd album. A studio version appeared in 1970 on the rare multi-artist album Picnic – A Breath of Fresh Air, which was reissued in 2007, and the 1983 band compilation Works. Live performances expanded on the studio original, stretching beyond ten minutes. Multiple renditions of "Embryo" appeared on the band's 2016 box set The Early Years 1965–1972; two versions were also included on the smaller 2-disc compilation The Early Years 1967–1972: Cre/ation."