There are so few soundtracks that make me sit up and take notice. Le Petit Prince's French jazz harnesses light and focuses it on every plain object illuminating it with chid-like wonder.
The video game based on the book series, The Witcher by Andrezj Sapkowski brings the listener back to the dark ages fearing what goes bump in the night. The Witcher III DLC, Blood and Wine, starts with a haunting lullaby that sets the tone for your slavic folk ride.
Writing to both soundtracks changes the hue of the world. From light to dark, happy to haunting, dreams to reality.