Motion picture music

Background music for motion pictures
Film music
Film scores
Motion pictures Musical accompaniments
Movie music
nne Moving-picture music

Film soundtracks. Silent film music.

The Cambridge companion to film music, 2016.
Movie music, the film reader, 2003.
Thomas, T. Film score : the art & craft of movie music, ©1991.
Oxford English dictionaries website, Feb. 25, 2019 (score 3.1. The music composed for a film or play. "a film score")
Wikipedia, Feb. 25, 2019: Film score (A film score (also sometimes called background score, background music, film soundtrack, film music, or incidental music) is original music written specifically to accompany a film. The score forms part of the film's soundtrack, which also usually includes pre-existing music, dialogue and sound effects, and comprises a number of orchestral, instrumental, or choral pieces called cues, which are timed to begin and end at specific points during the film in order to enhance the dramatic narrative and the emotional impact of the scene in question)

Here are entered musical works composed for sound films or performed on soundtracks. Works about unaltered motion picture soundtracks that may include speech, sound effects, music, etc., are entered under Musical works composed or adapted to accompany silent films are entered under