[3] These CD editions incorporate musical material from the film that would not fit on the original LP, with the 2023 release presenting the score in its entirety and including 40 unreleased tracks, such as alternate takes and other material removed from the final film version.

For the original Broadway show, the music was written by Richard Rodgers with lyrics by Oscar Hammerstein II; both the lyrics and music for the new songs were written by Rodgers, as Hammerstein died in 1960.

[10] In 2018, the soundtrack was selected for preservation in the National Recording Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".

Elsewhere, the album achieved large sales in the UK, Japan, Canada and Australia, becoming one of the best selling records of the 1960s.

[citation needed] All music written by Richard Rodgers, lyrics by Oscar Hammerstein II, and arranged and conducted by Irwin Kostal.