Andy Williams Sings Rodgers and Hammerstein 1", which contains 17 of his studio albums and three compilations and was released on June 26, 2001. In AllMusic, William Ruhlmann wrote that Williams "wasn't really a rocker, even if he sometimes pretended to be one for commercial purposes at the behest of Cadence Records head Archie Bleyer" and that he "was allowed to show his true colors by recording a collection of Rodgers & Hammerstein songs from the musicals "Oklahoma!", "Carousel", "South Pacific", and "The King and I". The result was the birth of the Andy Williams his fans knew from then on." Ruhlmann felt that "Williams revealed
Rodgers and Hammerstein Although there are exceptions to this generalization, it simplifies the audition process, and gives audiences an idea of what to expect vocally from a Rodgers and Hammerstein musical. However, this formula had been used in Viennese operetta, such as "The Merry Widow". William A. Everett and Paul R. Laird wrote that "Oklahoma!", "like "Show Boat", became a milestone, so that later historians writing about important moments in twentieth-century theatre would begin to identify eras according to their relationship to "Oklahoma!"" In "The Complete Book of Light Opera", Mark Lubbock adds, "After "Oklahoma!", Rodgers and Hammerstein were the most important contributors