Score: A film score refers to the original music that accompanies a film. In most cases, movie music is written by a film composer hired for the production. The movie score heightens the film’s emotion, creating an aural mood for each scene, along with sound effects and dialogue.

Underscore: Underscore. An underscore is a soft soundtrack theme that accompanies the action in a performance. It is usually designed so that spectators are only indirectly aware of its presence. It may help to set or indicate the mood of a scene.