Narrative theory describes how stories are structured and told in music videos to make them comprehensible for audiences. Theories by Todorov, Propp, and Levi-Strauss establish common structural elements of narratives, including equilibrium disruptions, character archetypes like heroes and villains, and inclusion of binary opposites to aid audience understanding. Todorov's theory outlines stages of equilibrium, disequilibrium, recognition, reparation, and new equilibrium, while Propp identifies character functions and Levi-Strauss incorporates opposing concepts.