The Wizard Of Oz

The songs were recorded in a studio before filming. Several of the recordings were completed while Buddy Ebsen was still with the cast. So while he had to be dropped from the cast due to illness from the aluminum powder makeup, his singing voice remains on the soundtrack. Although an orchestra underscores the entire film, approximately the last third of the movie contains no songs. The last three songs in the film, "The Jitterbug," the vocal reprise of "Over The Rainbow," and "The Triumphant Return" were all excised from the film before its official release.
Although the MGM movie version of "The Wizard of Oz" was released in 1939, the soundtrack album wasn't released until 1956, to coincide with its first showing on television. Because of the film's success on television, the original soundtrack album has never been out of print. However, over the years, it has been reissued many times, in many different editions, and due to the advent of the CD, expanded to include more film content.