Answer:
When watching the "60 second guide to film music - leit motif,” in my opinion, it was noticed how certain composers used objects to contrast between different leit motif themes for theatrical uses changing the atmosphere and creating scenario/scenery contrast for audience suspense and anticipation.
Explanation:
for example, when dark characters or entities such as "Darth Vader," or the "darklord" were introduced, the leit motif changed to very daunting, suspenseful and intense leit motifs, appearing to introduce the dark presence, evil, or villain like character.
In contrast, leit motif introductions of a more whimsical or heroic character were noticed around objects or main characters
as with the Lord of the Rings, the ring introduced a liet motif of being whimsical as contrasting for the audience it's the main purpose of the film, while displays of the hero or a staft brought about a sense of determination and hope leit motifs theme's, and the giants some sort of beware, authority and cautionary contrast for the audience.