Conventions of a music video

Lip synching
Lip synching is one of the most important conventions which occur in a music video. This is because the artist is singing the lyrics which are in the video. Lip synching is to make it look like thge artist is actually singing in the video. Majority of music videos when the artist is performing in the music video lip sync.

For example in the music video Blank Space from Taylor Swift she uses lip sync in her video.

Close up of the artist
Close up of the artist is because it is to show that they are the main person in the music video and the one who is most important. Close ups of the artist also portrait there image as an artist and for them to become recognizable to people viewing the video. Also regular close ups of the artist link in with lip synching because it gives a clearer indication that the artist is lip synching when it is a close up shot.

For example this is a close up of Sam Smith lip synching whilst performing in the music video for I'm not the only one.

Also artist's performing in a music video is to add a meaning to the song. Performance is when the artist performs in the video. Thus is because when the artist is performing they help make the video more interesting for the viewer to watch and help emphasis the use of lip synching. Some music videos rely on the performance in the music video to get across the real message of the song they have written. For example 'A Team' from Ed Sheeran the music video gives a real insight to what the song actually means because of the use of performance in the video. 

Here are some examples of Artists performing in music videos.

 Rita Ora and Iggy Azalea

 Ed Sheeran

 One Direction

Multiple locations
Multiple locations is important in a music video because it makes it more interesting for the audience. For example if you are watching a music video where it is fast paced and a change of location happens throughout the music video you will feel more involved when watching it, and won't want to stop the music video because you are bored.
An example of 3 or more locations used in a music video is Uptown funk by Mark Ronson ft Bruno Mars

Costumes
Costume is important in a music video because it has to suit the genre of your music video. For example if you are performing a 'Rock' music video you would expect dark clothing and a leather jacket. However if you had a video with colorful clothing it wouldn't link and would look wrong.

Rock

Pop

 R n B

Montage editing
Montage editing is a convention for music videos because it is when you edit the music video and change from clips in different locations or camera angle. For example if you are taking a long shot then the shot goes to a close up in one action this is montage editing it has to be done smoothly also.