I've seen songs you associate with your characters but never ones about your stories or your serieses :0
It's exactly what it says on the tin: What songs do you associate with your stories?
For example, I really associate Charlie Brown (warning, flashing lights) with a subseries of mine!
I also associate Birds with my Bridgeport story can you tell i like coldplay lol
The Spiritual by Jukebox the Ghost not only fits my main story, RED SOLO, very well, it's in my favorite album of all time, and by my favorite band. Listening to it reminds me of myself and my characters both, and it's a well-written and beautiful song, so I personally think it's a good choice.
I also have a Spotify Playlist for the collective story too, though ^^