The document discusses three non-diegetic soundtracks to include in a movie trailer for a slasher film. A party soundtrack was chosen to emphasize reckless teenage behavior inspired by the film "Project X." A nursery rhyme, "Teddy Bear Picnic," was selected to represent contrapuntal sound and reference the forest setting, played in a creepy version. A heartbeat soundtrack was proposed for a montage section to mirror the characters' and audience's heart rates, adding thrill and anticipation for the characters' lives.