How Pink Floyd's 'The Early Years 1965–1972' Box Set Chronologically Organizes Its Discs

The set splits into seven “period” discs, each named after a year or span: 1965–1967: Cambridge St/ation, 1968: Germin/ation, 1969: Dramatis/ation, 1970: Devi/ation, 1971: Reverber/ation, 1972: Obfusc/ation, plus a final disc of BBC radio sessions. Non-album singles like “Arnold Layne” and “See Emily Play” land on the first