There is the potential in everybody, don't define who are great or insignificant. Just let show when he is confident to what he grasp, though we can learn from, but no one can replace and become the one who are unique and special individual.
Terrific music plays beyond social class and definitely moves one's heart! the movie tries to say that music is one of the important elements in our routinalized life as well as we should lock the memory of the people you met once-in-a-life time.