Non diegetic sound of gong in the beginning of the scene is probably an end to a sound bridge, which is used to get audience's attention to what is happening. The non-diegetic sound is not used for a while, which shos that producers are trying to get the audience to feel how the characters do. Diegetic sound in the form of a dialogues shows the communication of the characters. Diegetic hard breathing of the woman in between her talking, emphasises that she feels nervous and awkward. The volume of the diegetic sound has been increased, so even the rustling of the envelope is loud, which also emphasises the awkwardness and indicates that this is a business transaction encounter. As the diegetic dialogue continues, the audience can identify that the boy feels nervous and uncomfortable, because he doesn't finish his sentences. The same goes for the woman, which in a way brings the characters closer together for the audience, as they are feeling the same emotions. The use of "oh" throughout the dialogue also shows the how the characters are nervous.
The loud ambient sound of the door locking, highlights the vulnerability of the boy, as he's father is outside and can not help him. The following dialogue between boy and the woman is punctuated by awkward silences, which indirectly emphasises the boy's disability, by drawing the audience's attention to the unusual situation and the reason why he is there. The disability is treated like part of the narrative and is not used to get the audience to stare or feel too much pity for the boy at this point. The use of sound in combination with mise en scene, cinematography and editing helps to highlight disability, as being the main theme for this clip.
The scene cuts to father being outside and the diegetic soundtrack of fast paced classical music, is the complete opposite of father's nervous feelings and fidgity behaviour. The diegetic sound effects of the car, father opening and closing car's window, father moving the car seat and accidently pressing the horn highlight that he is very anxious about his son, but also he is a bit bored, as the time goes slowly and he has nothing to do except for feeling "on the edge" all of the time.
There is a non diegetic soundbridge soudntrack that begins with the father and transists into another scene with the boy and the woman. It is slow, mellow, harmonica tune and so it is reflecting their dialogue calming the mood down a bit. It also gets the audience to feel more pity for the boy's disability and emphasises that this is a very important scene, as he has never been touched before. The use of hamonica instrument helps to create a sad atmosphere. The soundtrack can also be described as sllightly seductive, which creates the romantic mood for the audience abd shows sexual tension and relationship between the characters. The audience can guess that the soundtrack will continue to develop in a seductive was, as the characters are about to have sex.