The pianist performed with 'subtlety' and passion.
The movie lacks 'subtlety'.
(..) They know your power will be too strong to control. You must break through the fog of lies the Jedi have created around you. Let me help you to know the subtleties of the Force. How do you know the ways of the Force? My mentor taught me everything about the Force. Even the nature of the dark side. (..)2005 Star Wars: Episode III - Revenge of the Sith