The clip is the extended version of Thriller by Michael Jackson.
· Diegetic sound: It is sound that the characters can hear as well as the audience, and usually implies a reaction from the character. Also called "literal sound" or "actual sound":
o Voices of characters;
o Sounds made by objects in the story; and/or like heart beats of a person
o Source music, represented as coming from instruments in the story space.
o Basic sound effects, e.g. dog barking, car passing; as it is in the scene
o Music coming from reproduction devices such as record players, radios, tape players etc.
· Non-diegetic sound: It is sound which is represented as coming from a source outside the story space, i.e. its source is neither visible on the screen, nor has been implied to be present in the action. Also called "non-literal sound" or "commentary sound":
o Narrator's commentary;
o Voice of God;
o Sound effect which is added for dramatic effect;
o Mood music; and
Non-diegetic sound plays a significant role in creating the atmosphere and mood within a film. (or other Media)
Very commonly diagetic shift occurs from one to the other, for example when characters are listening to music, then start dancing and the music becomes non-diagetic to indicate being 'lost in the moment'.
