He categorised music videos into 3 categories:
Illustration: This is where the video tells the story of the lyrics. Dance is often used to express the feelings/moods in the song.
Amplification: This occurs when the videos introduce new meanings that do not contradict with the lyrics but add layers of meaning.
Disjuncture: This is where there is little connection between the lyrics and video or where the video contradicts the lyrics.
Examples i have found of each of theses are:
He knew that most pop music videos are about repetition:
Disjunction: Not much to do about the lyrics at all.
Illustration: Songs called hold you and hes holding a girl at the chorus.
Amplification: As he says such words as fireflies it comes up on the screen of a little toy.