Literary notes about sound (AI summary)
In literature, "sound" functions as a multifaceted tool that conveys both physical sensations and abstract qualities. It often depicts tangible noises—ranging from the blaring of emergency sirens that unsettle a scene [1] to the delicate sound of a heartbeat barely perceptible in silence [2]—while simultaneously suggesting movement or anticipation, as with the call to action of a bugler or bell [3, 4]. At the same time, the term embodies metaphorical dimensions, representing ideas of reliability and well-being, such as when it describes judgment, health, or philosophical solidity [5, 6, 7]. Additionally, sound is employed for its aesthetic qualities, underpinning moods with the resonant notes of a flute or the subtle lull of a peaceful sleep [8, 9], and it even enters technical arenas in discussions of phonetics and articulation [10].