Answer:
A slow tempo in a piece or a weak pulse can effect a solemn tone.
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tensions rises, and some sort of crisis occurs and reaches its climax (development). Then the crisis is resolved (recapitulation). Maybe there's a twist at the end (coda). The mains “scenes” within sonata-allegro form are 1) exposition, 2) development, and 3) recapitulation.
B)... i think it would be false.
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