Codes and conventions are techniques used in music videos to convey meaning that relates to the music. They include technical elements like camera angles, shots, editing, and sound, as well as symbolic elements like facial expressions, gestures, and mise-en-scene. Codes and conventions help audiences recognize genres, understand how the video fits the song's feelings and lyrics, and follow what is happening in the video. Common codes and conventions are camera angles, sound, editing techniques, mise-en-scene, notions of looking, and different video styles like narrative, performance, and concept videos. These elements are carefully crafted to match the song's emotion and engage the target audience.