 Complete the following phrase:  Retrospectively, Changes is described by numerous Bowie biographers as a manifesto of his entire career. Throughout the 1970s, Bowie changed his musical styles and appearances constantly; Doggett notes that each album he released between 1974 and 1977 could not have predicted the next, from Diamond Dogs 1974 to Young Americans 1975, Young Americans to Station to Station 1976, and Station to Station to Low 1977. Following 