diegetic
adjective theatre and film specialized uk/ˌdaɪ.əˈdʒet.ɪk/ us/ˌdaɪ.əˈdʒet̬.ɪk/
剧情中的（音乐）
Diegetic music in a film or TV programme is part of the action and can be heard by the characters, rather than being just for the people watching to hear.
All the music in the series is diagetic, coming from car radios, night club scenes, and so on. 该系列的所有音乐都是剧情中音乐，来自汽车收音机、夜总会场景等等。
Opposite: non-diegetic