Sound in my clip

Sound in my clip:

My group plan to use diegetic at the beginning of the scene with the sound of a woman’s clicking high heels in the background of a scene of the doors to the school. This will immediately indicate to the audience the gender of the character and signify the contrasting view of the woman being the killer. There will also be a gradual sound of a woman whistling a nursery rhyme- as the scene gets closer and closer to the woman, the whistling will get louder and will fade into a non-diegetic sound of a nursery rhyme which will be placed over the moving image. There may be noise from when the cleaner gets knocked over e.g. if he knocks over a bucket or other equipment in the scene. I hope that this will leave my audience aprehensive to what actually is going to come from this. It is later revealed that the woman is powerful however equally manipulative by the man whom she is working for.