Diegetic: Situations and events when narration occurs. Non - Diegetic: Things which occur outside the story world.
Ambient: Music that creates atmospheric.
SFX: Special effects in film and TV.
Mood: The emotion of the music being used.
Tone: This gives the music body and the key it's in.
Genre: The style of music, e.g Punk, Rock, Metal, Jazz.
Theme music: This music is made for a specific thing such as a TV show, film or character.
Voiceover: Off camera commentary.
Musical score: A piece of music written for the film or TV show.
Synchronous sound: Sounds that go with the action on the screen.
Asynchronous sound: Sound that do not go with the actions on screen.
Contrapuntal: These sounds give a juxtaposition of what's on the screen.
Silence: Where there is no sounds used.
Selective sound: Used to emphasize key sound elements within a sequence.
Sound bridges: One sound is used to cut from one scene to another.