The main reason for an opening sequence is to: Introduce characters, Introduce what they do, The logo, Introduce the setting and it is music that relates to the show.
This music relates to the show because the starting is loud and has a shocking affect because its like a thumping noise, also the music is slow and unhappy but yet shows a little happiness and this links to the show as there are different times of happiness and sadness. Moreover when the opening music comes on viewers are automatically aware of what show is on because the theme music is catchy.
C - Costume .. No people
L - Lighting .. Grey/Blue colours
A - Angles .. Birdseye view facing down onto
M - Mise en Scene .. All of
P - Props .. Only shows the area
S - Setting ..
