The document discusses various forms and conventions used in music videos. It notes that forms depend on genre and include elements like performance to showcase artistic skills or use of narrative to engage audiences. Conventions discussed include keeping videos around three minutes, using artistic camera work and lighting to attract viewers, and close-ups of artists to emphasize their image. Examples provided include the author's video using a dream narrative and lighting similar to Jason Derulo's "Swalla," as well as both being around three minutes long.