In a minimum of 250 words based on links below, and your own web research, which

In a minimum of 250 words based on links below, and your own web research, which may also include Wikipedia, compare/contrast film music trends in each of the 3 periods we’ve covered in Unit 1 (especially this list of sources), as well as Unit 2 and Unit 3. Parameters that you might include in your analysis can include:
1) how the use of the 5 elements of music has changed/stayed the same over the decades
2) how the functions of music have changed/stayed the same over the decades
3) what societal reasons for these commonalities/changes of music elements/functions over the decades might be
WATCH FOR ASSIGNMENT IN-CLASS A9:King Kong (leitmotifs):https://www.youtube.com/watch?v=JuG4Y3m9q7Y&t=372s
Vertigo (16:58 – 18:30):https://www.dropbox.com/s/uee323rm6jkzk4h/Vertigo.mp4?dl=0
The Graduate opening:https://www.youtube.com/watch?v=XmAHbDSf4jQ
American Beauty (1:04 – 4:23):https://www.dropbox.com/s/ugf96dyw466rty6/AMERICAN_BEAUTY.m4v?dl=0
Unit 1 Doc: https://classroom.google.com/c/Mzc4Mjc0OTEwNDQ3/m/Mzc4Mjc2NjkxNDQx/details
Unit 2 Doc: https://classroom.google.com/c/Mzc4Mjc0OTEwNDQ3/m/Mzc4MzQ5NzMwNTUx/details
Unit 3 Doc: https://classroom.google.com/c/Mzc4Mjc0OTEwNDQ3/m/MzE5NTA2NTE5NzY4/details