Jaws - example of Diegetic/Non-Diegetic sound - parallel, ambient, soundbridges, motifs

Here in this famous sequence, the sound is ambient and diegetic - the sound used to indicate the shark is a motif (a repeated pattern of a sequence of notes/phrase of music - like James Bond's theme) and the movement of the music and the camera mimic the movement of the shark. The use of no non-diegetic music around and after the attack (when all you hear is the ambient sound of the sea, the bell tolling - and silence) is still stunningly effective, even now.

1976 - Spielberg  JAWS

HERE (on 'Openings' blogpage)