The crossword solution for the term 'Sound of Music Tune' is 'Edelweiss'. Edelweiss is a traditional Austrian folk song, which was popularized by the 1965 musical film The Sound of Music. It is a sentimental ballad about a flower that grows in the Alps and is sung by the characters of the movie. The song has become an anthem of Austrian national identity and is often used as a symbol of Austria's cultural heritage.