Music conventions in Thriller films

A common convention of Thriller films would be the type of music they use. Although nearly all films have some type of non-diegetic music in them, Thriller films are notorious for using non-diegetic music to build on the suspense and tension. The build up of eerie music adds to the emotion thats trying to be portrayed from the main character, and more than often links/is similar to music used later on in the film. Using strong base lines to layer the music makes it seem scarier and deeper in a sense that it seems to travel through the air more.

An example of this would be 'Time' by Hans Zimmer on the Inception soundtrack.