Jeffrey’s Reviews > The Film Music of John Williams: Reviving Hollywood's Classical Style > Status Update

In the final 15 minute stretch of symphonic music accompanying ET, the extraterrestrial, Steven Spielberg encouraged John Williams compose the music exactly as he wanted to if it were a concert and then edited the film to fit the symphonic score!

In contrast to diegetic sound, which is heard by both the audience and the film's characters, non-diegetic sound is only heard by the viewers.

Wow, holy moley, john williams is so talented and prolific, look up all the film , tv , olympic, concert work he has done. And is still doing in his 90s. Spotify has a great list

The 60s and modern Hollywood sound - Mancini! Non diegetic sound, even songs, in movies - connected or not to the action (“mrs robinson” had little to do with dustin hoffman goings on) the sound track as another revenue stream

The transition of music from silent films to talkies , from mostly Diegetic music, (sometimes called source music, is music that originates from a source within the world of the film,) to a mix , incl Non-diegetic music, also known as the score or background music, is added in post-production and is only heard by the audience, not the characters.