Answer: Dissonance
Explanation: Dissonance is a mixture of disharmonious sounds used mainly to create a harsh scene especially in horror movies. Dissonance can also be described as disharmony between Musical sounds,it is the opposite of Assonance. Horror movies which are movies containing very harsh and unpleasant scenes,will most likely contain a lot of Dissonance which will help to portray the harsh situations the film director wants to show.
Answer: Middle C got its name by being in the MIDDLE of the Grand Staff. Between Treble Clef and Bass Clef, that's where you'll find it. :)