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<span>The cascading vaults of Jorn Utzon Sydney opera house are intended to suggest sailboats.
The spherical-sectioned shells distinctly are similar to the flotilla of the sailboats floating around the opera house. </span>
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DISSONANCE is the technique used that is the opposite of harmony and combines disagreeable sounds.
Dissonance in music is the combination of tones that are not in accord with each other. It gives out an inharmonious sounds giving the impression of being incomplete and in a state of unrest.