- Music videos can anchor the meaning of a song for viewers by telling a visual story to accompany the lyrics. However, their main purpose is advertisement for the artist and record label. - Andrew Goodwin identified five key aspects of effective music videos: showing the sound through "thought beats"; using narrative and star performances; crafting the star image; relating visuals to the song; and technical elements like editing, effects, lighting and camerawork. - Goodwin argued that the artist should appear in the video to better connect viewers to the narrative and make the story more believable. Technical elements are also important for setting mood, emphasis and a professional appearance.