The main advantage of the omniscient approach is that it's the easiest to handle. That's the major reason so many writers select it.
Arthur HerzogQuotes currently Trending
Let's say music is needed for only 43 seconds of film. You have to score it so it is an entity, so it won't bother anyone when it ends so quickly. Or if a song runs 2 minutes and 45 seconds, but the titles run a minute longer, you have to arrange that song so it doesn't get repetitious.
Marvin Hamlisch