"Edelweiss" is a song from the musical "The Sound of Music." It is written in the original key of B-flat major. The music and lyrics for the song were composed by Richard Rodgers and Oscar Hammerstein II. The song is performed by Captain Georg von Trapp in the musical, originally played by Theodore Bikel. Interestingly, the song was the last piece of music that Rodgers and Hammerstein wrote together before Hammerstein's death in 1960. "Edelweiss" became synonymous with the musical and is often considered a national song of Austria. The melody of the song is simple and heartfelt, capturing the beauty and nostalgia of the Edelweiss flower, a symbol of the Austrian Alps.