What is a music video?

According to Pete Fraser, the head of the exam board, the following six features must be included in our music video;

1. the music video must be atleast as long as the song. It can be slightly longer if an intro and/or outro is included.
2. the video features the artist(s) quite prominently.
3. the video includes some element of performance such as singing, dancing and/or acting.
4. the video has some kind of concept along with the track.
5. the video features a narrative of some kind; can be fragmented.
6. different genres of music produces different visual conventions; this should be clear.