Read the excerpt from "Bluesman on the Move." It’s hard to believe, I know,

an old man and his tales.

Stray notes from my guitar still

bounce around the mountains like ghosts.

The word "ghosts" creates a sense of

Loneliness

Explanation:

In the given excerpt from "Bluesman on the Move," the author's word-choice for using the word like 'ghosts' primarily aims to develop a feeling of 'isolation and loneliness.' It assists the author in reinforcing the idea that the place is so deserted that 'even the notes of the guitar bounce back similar to ghosts.' This sets the mood for the reader and further emphasize the abandonment of the place where the old man didn't even have someone to tell his tales.

the purpose is to inform because for some reason they really want you to know about it.