It was Friday the 13th yesterday, so I thought it was about time that I added Harry Manfredini’s iconic score to the annals of Classic Movie Themes. The 1980 slasher movie Friday the 13th has become as legendary in the pantheon of cinematic horror history as John Carpenter’s Halloween. Although there are marked differences between these two films, both use minimalist musical scores extremely effectively to punctuate the proceedings and embellish the overall atmosphere. However, Manfedini did not want to provide viewers with obvious audio cues during scenes of building tension. He preferred to focus his score upon the activities of the franchise's iconic killer, Jason Voorhees, and hence have strong musical cues when he was on screen. This approach meant that he had to use a unique musical motif to denote potential tension, without diminishing its effect on the audience by excessive use of obvious and melodramatic cues.