I'm not entirely sure who composed the soundtrack specifically for 'Cinderella Story'. There are many different versions of the Cinderella story, and each might have a different composer.
Paul Zaza. He was able to create a soundtrack that was not only festive but also really captured the essence of the characters and the different scenes in the movie. The music he composed was able to enhance the emotions of the story, whether it was the humor, the family warmth, or Ralphie's hopes and dreams.
First, you can use spooky instruments like the theremin which has an otherworldly sound. Then, add in some low, deep tones to create a sense of unease. For example, a slow - paced, deep bass line can mimic the feeling of something lurking in the dark.
Unfortunately, I don't know the exact composer of the soundtrack for a cinderella story. However, many soundtracks are a collaborative effort. There might be composers who are experts in creating melodies, others who are good at arranging the music, and still others who handle the instrumentation. It takes a lot of talent and coordination to produce a soundtrack that enhances a story like a cinderella story.
There could be. Sometimes, new soundtracks are created for popular games like Cave Story. However, without more specific information about this 'Polaris' in relation to Cave Story, it's hard to say for certain. Maybe it's a new project or a mod that includes a new soundtrack. It would be best to search for it on gaming news sites or relevant communities.