Composer Harold Arlen and lyricist Yip Harburg often worked in tandem, Harburg generally suggesting an idea or title for Arlen to set to music, before Harburg contributed the lyrics. For their work together on "The Wizard of Oz", Harburg claimed his inspiration was "a ballad for a little girl who... was in trouble and... wanted to get away from... Kansas. A dry, arid, colorless place. She had never seen anything colorful in her life except the rainbow". Arlen decided the idea needed "a melody with a long broad line".