0 Non-diegetic music in a film or TV programme is played over the action for the people watching to hear, rather than being part of the action and heard by the characters. --
This work, portraying a chance conversation between two strangers at a traffic intersection, used separate, non-diegetic sound feeds to represent the setting and the dialogue of the characters.
Bishop is heard whistling the tune of this particular theme at the beginning and end of the film, making the electric piano theme a non-diegetic realization of a diegetic source.
Most of the film is silent, except for two brief scenes with sound as well as the non-diegetic soundtrack.
The music is usually used as a background element and is non-diegetic, although occasionally the music comes from a diegetic source.
Put more simply, a non-diegetic insert is a scene that is outside the story world which is inserted into the story world.
The nature of video installation as a multimedia, multidimensional form allows both sound and image to expand beyond diegetic restrictions - the 'visual container' - in ways similar to non-diegetic music.
Most film soundtracks are non-diegetic, meaning that they do not actually occur within the narrative frame.
A priori, the terms 'diegetic music' and 'non-diegetic music' situate film music as measured against the 'diegesis'.
