Any chance You can list the songs used in the novel?
A) you can shazam them and listen to them in youtube
B) you can datamine the game, search for the archive.RPA file and use a decompressor (find here in itch.io).
https://youtube.com/playlist?list=PLquJNNo7wWsVAxYcDZb4yWQQ4PckEw8cB
Thank You