This evening I am listening to "Theme from To Kill a Mockingbird" by Elmer Bernstein https://www.youtube.com/watch?v=_t98LWNwUhI
I'm totally biased as this is one of my favourite movies and books of all time
but this music is also wonderful, the simple melody evokes the innocence of Scout and then the other instruments join in, these are the people who join in her story, Gem, Dill, Atticus and also Boo. And later there is the melancholy and growing sophistication which echoes her adult understanding of life and people and the events of her childhood, because this story is a story of childhood told by an adult.
I love this music, wish I could explain it better but I'm not a musician.