First of all, this song DO RI MI comes from the short and lively song "Doremi" from the classic music movie "The Sound of Music" 》. "The Sound of Music" is written by Richard Rodgers and Oscar Hammerstein II, the masters of American musicals, based on the autobiography of Maria Von Trapp: Adapted from "The Story of the Trapp Family Singers". The musical feature film "The Sound of Music" was written by American playwright Lerman. "The Sound of Music" premiered on Broadway at the Lunt-Fontanne Theater on November 16, 1959, becoming the second longest-running Broadway musical in the 1950s. The film version of "The Sound of Music" produced by 20th Century Fox in 1965 brought it to the world stage and was loved by millions of viewers in various countries around the world. The most cherished and carefully recalled artistic masterpiece in human memory, a classic among classics in Hollywood musicals and musicals, and a wonderful masterpiece in the history of film.