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.
Racing games had little non-diegetic music (most just had engine sounds during gameplay), and flight simulators tended to be silent.
Visual abstraction breaks from the confines of the screen to challenge its own dimensional deficiency, spreading into illusory spatial gaps previously filled by non-diegetic music.
That is to say, music is not so much source (diegetic), background (non-diegetic), nor just mutually implicated in the narrative meaning of a scene.
If there is no physical 'off-stage', if the images create a 360-degree surround, does this negate the possibility of non-diegetic music?
But is video installation art an entirety that includes the implied beyond, or is it a realization of non-diegetic potential?
The music moves from diegetic to potentially non-diegetic spaces as he goes outside to catch a bus.
A priori, the terms 'diegetic music' and 'non-diegetic music' situate film music as measured against the 'diegesis'.
Most film soundtracks are non-diegetic, meaning that they do not actually occur within the narrative frame.
