Rhythm is a literary device which demonstrates the long and short patterns through stressed and unstressed syllables, particularly in verse form.
https://www.youtube.com/watch?v=uvsWzfuHrMA
Example-go to 1 minute, the rhythm builds up tension to emphasize the stake
Voice over
Narration or dialogue, as in a movie, commercial, or documentary, spoken by an unseen narrator or an onscreen character not seen speaking: a character whose thoughts were revealed in a voice-over.
https://www.youtube.com/watch?v=otCWl8uJenA
Voice over gives more depth to the story
Sound bridge
When the scene begins with the carry-over sound from the previous scene before the new sound begins.
https://www.youtube.com/watch?v=tLm1mhrCws4
Sound makes it seem like both scenes are close in time because it's continuous