Goodwin's theory outlines that music videos demonstrate the genre's characteristics through their own style. Music videos also show the relationship between the visuals and lyrics of a song, as well as how the visuals amplify the music. Other common elements include the voyeuristic treatment of women, demands for shots of the artist from record companies, and references to other media like film and television. The document also discusses the challenges of finding music videos to compare for a song that mixes genres, like electronic and indie rock.