Homoe, what about phrases of thought which are only uttered through
mnemomic device ....like the hook signature melody from the movie,
Jaws???
Mnemonic Device (definition): Techniques an person uses to help improve one's ability to remember. It's an memory technique to help your brain to better encode and recall important information.
No words are spoken. Yet, in particular cases, the hook signature line of an orchestral arrangement, in this case it's from the movie
Jaws, which invokes the signal that there is something scary going on--- something that isn't always readily seen by the human eye.