Music videos can be categorized into three types: performance, narrative, and conceptual. Performance videos focus on the artist performing for the camera. Narrative videos tell a story to help audiences relate to the song's lyrics. Conceptual videos are based on a concept rather than the song itself. Conventions like camera shots, editing, sound, and mise-en-scene help convey the artist's message. Different music genres also have their own conventions - for example, pop videos often use quick cuts and colorful aesthetics while rock videos feature rebellious styles and unpolished camerawork.