Horror Music Research

Most horror music is used to build tension throughout the film. The majority of this music starts at a slow tempo and low sound then gradually builds up as the event or danger becomes closer. In affect this cause the audience to panic due to the use of a dramatic irony as we know something is going to happen by the suggestion of the music but the character doesn't. The music also sometimes includes short raises in volume to scare the audience.

Here's an example i found on a free music website that i thought suited a horror film.