More recently, critics are beginning to soften their posture and accept his concert music for its wealth of melodic invention and opulent tone colors. Currently, there is a resurgence of interest in his music, and film music in general. The Cello Concerto however, has received sparse attention and merits further study. An analysis of the film Deception, and, in particular, the Cello Concerto, will contribute to this ongoing reassessment of Korngold. Underscore refers to the background music that the characters in the narrative can not hear.
Source music is music that has an on-screen source.
For example, the on-screen band at the wedding scene in Deception is playing music that is heard by the characters in the story. Source music and underscore are the terms that are most widely used by composers in Hollywood and probably what Korngold would have used when communicating with his colleagues on the sound stage. Worth noting in Carroll and Duchen's books is the disparity in attention given to Korngold's parents. We end up knowing a lot about his relationship with his father, while little attention his give to his mother's role in shaping the direction of Erich's life.