This is what I have learnt about music video form and conventions.
The relationship between the song and the narrative
This can be conveyed in three ways illustration, amplification and disjuncture.
Illustration- The narrative in the video very closely echoes the lyrics and the music.
Amplification- The narrative whilst inspired by the song adds a new element to compliment the song.
Disjuncture- The narrative seems to hold very little relationship to the song and seems quite random.
I have also learnt that the star image and MES is very important in music videos.