Sound analasis - Incidious

In this scene the sound almost acts like a guide to the audience.
At first the sound has a slow tempo with an almost reflective tone, giving the audience many positive connotations and expectations, making the audience think that the "drama" is over. then the man gives the picture to the old lady. The music then fades out to a high pitch sound, which has many connatations of sirens. this almost act as a reminder to the audience. because the audience thought everything was turning out to be alright the twist comes more of a suprise to them.