Final answer:
When a person senses a presence upon hearing music, it suggests a deep emotional or psychological response that makes them feel as though someone is there, often used in storytelling to convey a certain atmosphere or hint at unseen forces.
Step-by-step explanation:
When he hears this music and senses a presence, it describes a phenomenon where the music evokes a visceral or supernatural feeling that someone or something is there with him, despite no visible presence. This sensation might be the result of heightened emotions or a specific atmosphere created by the music. It often happens in narrative arts, such as literature or film, where the auditory cues (music) are used to heighten the audience's emotional response and suggest an unseen character or force at play.
The passages provided touch on various sensory experiences and psychological states where the characters perceive more than what is literally there, informed by the music or setting. From the acute awareness of the environment to the belief in the sentience of inanimate objects, these examples showcase how auditory and other sensory inputs can create an immersive and powerful narrative experience, expanding beyond the immediate reality.