Because dissonance is an important part of music analysis and psychoacoustic research, improving the model for predicting dissonance is useful. In this new model, musical events are assumed to reside in short-term memory, lasting on the range of 3 to 5 seconds. The total dissonance is the sum of the local dissonance from the new event and the interaction with elements in memory. In subjective tests with different kinds of music, the model with memory consistently better predicts listeners’ reports of dissonance. Dissonant sounds in music give rise to a physiological arousal response in listeners.
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