Diegetic - This is when music that is being played is part of the narrative, this means that if someone in the film is playing the piano then the sound that you consequently hear is Diegetic.
Non Diegetic - This is when music that is being played is put in Post Production and is used for addition effect and placed behind (In the Background) all other sounds
Ambient - often organized or performed to evoke an "atmospheric","visual" or "unobtrusive" quality and effect.
SFX - artificially created or enhanced sounds, or sound processes used to emphasize artistic or other content of films, television shows, live performance, animation, video games, music, or other media.
Mood - Music that sets the context, mood and atmosphere of the scene.
Tone - the key and pitch of the music
Genre - the stylistic approach of the music, i.e heavy, Indie
Theme Music - a piece that is often written specifically for a radio program, television program, video game or movie, and usually played during the title sequence and/or end credits.
Voice over - When dialogue is recorded separately and placed over in Post Production to narrate and/or add effect.
Musical Score - a piece of music written for a specific scene, using ambience and orchestral styles.
Synchronous sound - Sound that appears to be matched to certain movements occurring in the scene, as when footsteps correspond to feet walking.
Asynchronous sound - Sound which is indigenous to the action but not precisely synchronized with the action.
Contrapuntal - the playing of one melody against another but which harmonizes with the original melody, 2-part harmony!
Silence - Music depends on silence in some form or another to distinguish other periods of sound and allow dynamics, melodies and rhythms to have greater impact. For example, most music scores feature rests denoting periods of silence.
Selective sound - The removal of some sounds and the retention of others to make significant sounds more recognizable, or for dramatic effect: to create atmosphere, meaning and emotional nuance.
Sound Bridge - at the beginning of a scene, the sound from the previous scene carries over briefly before the sound from the new scene begins. Or conversly, at the end of a scene, the sound from the next scene is heard, leading into that scene.
