The document discusses several theories about relationships between music video elements and the song. It outlines 6 main theories: 1) Relationship between lyrics and visuals, 2) Relationship between sound and visuals, 3) Genre-related styles and icons, 4) Close-ups of artists to promote their image, 5) Voyeurism and sexuality, particularly of women, and 6) References to other media like films. Each theory is explained and an example music video is given to illustrate how it has been applied.