Codes and conventions in music videos can be technical or symbolic. Technically they involve camera work, while symbolically they involve subtle acting and expressions. Basic conventions include camera angles and shots, editing, mise-en-scene, and diegetic or non-diegetic sounds. Common camera shots are mid shots, close ups, and long shots, each showing different levels of detail. Music videos can have narrative, performance, or both styles, telling a story, showing the artist performing, or a combination respectively.