High Quality Content by WIKIPEDIA articles! The Wizard of Oz is a musical based on the 1939 film The Wizard of Oz and L. Frank Baum`s 1900 novel The Wonderful Wizard of Oz. The adaptation is by Andrew Lloyd Webber and Jeremy Sams. The musical uses the Harold Arlen and E. Y. Harburg songs from the film and includes some new songs and additional music by Andrew Lloyd Webber and additional lyrics by Tim Rice.