The document outlines several theories about music video conventions and how they are used to convey meaning and engage audiences. It presents the key ideas of theorists such as Firth, Archer, Goodwin, Propp, Levi-Strauss, Barthes, Todorov, and Berger. For each theorist, it provides a brief description of their idea and typically includes 1-2 song examples to illustrate the concept. The theories focus on common narrative structures, representational techniques, the use of symbols and codes, and how meaning is constructed through visuals, music, performance and cultural knowledge.