Opened on November 21, 1928. Ran 29 performances, to about December 1928. Rainbow is a musical in two acts with music by Vincent Youmans, lyrics by Oscar Hammerstein II, and a book co-authored by Laurence Stallings and Hammerstein. After flopping on Broadway in 1928, it was adapted by Warner Bros. into the 1930 Western musical film Song of the West. Wiki link