A narrative based music video is a music video that is based around a narrative/storyline. This means that the visuals on the screen tend to correspond to the meaning of the lyrics.

What do they contain?
-sometimes fast paced with a lot of shots corresponding with the music
-intertextuality, referencing to other films, movies etc
-mimic other TV genre, e.g horror, romance
-sometimes the story can contradict lyrics for effect
-sometimes the artist is part of the storyline or completely seperate.

Often the video tells a story that either feature in the lyrics or is suggested by the lyrics e.g guy dumps girl/girl dumps guy. An example of this type of breakup narrative would be 'We Are Never Getting Back Together' by Taylor Swift where Taylor sings about not wanting to be in the same  relationship with a guy again (below).

 A narrative is like a mini film/story with a beginning middle and end and narrative music videos tend to use this format to tell the story. By the end of a narrative based music video you tend to see a state of equilibrium and resolution to the story however not all follow this ending as it could be that some narrative based music videos leave narratives on a suspense or a state of ambiguity otherwise known as a 'cliffhanger'. This can sometimes be a 'shocker' where the audience is exposed to a new series of events they did not expect. An example of this would be 'Call Me Maybe' by Carly Rae Jepson where the whole video is about a girl liking a boy to find out in the end that he is actually interested in guys (below).

 Some music videos that are released alongside a movie for cross-promotion or synergy tend to use visuals from the movie and mirror a similar narrative. An example of this would be 'Love Me Like You Do' by Ellie Goulding, this was released alongside the 'Fifty Shades Of Grey' movie and follows a similar narrative by using visuals from the film (below).