Informative function: the music indicates to the audience that an event is important or relevant. Relevant points: the entry point, the attack (progressive or attacked), the character of the music.
Psychological/connotative function: the music indicates the mood and feelings of the scene.
Analysis by modification of the informative and psychological function in Bates Motel 1×09 (2013)
Analysis by modification of the informative function of music in Vertigo (Hitchcock 1958)
Anempathetic music in The Third Man.