Younger Than Springtime it was sung by John Kerr miming to a vocal by Bill Lee. Hammerstein used repetition as a key aspect of the song repeating the words "am I" and "are you" when describing Cable and Liat: "softer than starlight", "gayer than laughter" and "younger than springtime". The song is written in F Major. Younger Than Springtime "Younger Than Springtime" is a show tune from the 1949 Rodgers and Hammerstein musical "South Pacific". It has been widely recorded as a jazz standard. The song is performed in the first act by Lieutenant Cable when he makes love to his adored Liat,
Younger Than Yesterday In addition to producing the recording sessions for "Younger Than Yesterday", Usher would produce the band's next two albums as well. The Byrds' biographer Johnny Rogan states that Usher's wealth of production experience and love of innovative studio experimentation would prove invaluable as the group entered their most creatively adventurous phase. Author David N. Howard has also remarked that despite the hodgepodge of styles and genres present on "Younger Than Yesterday", Usher's studio expertise gives the album an impressively uniform consistency. Following an intensive period of rehearsal at their Sunset Boulevard headquarters, the Byrds completed the entire "Younger Than Yesterday"