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What is the difference between a symphony and an opera?
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The main difference between a symphony and an opera is that a symphony is typically composed of four movements, while an opera usually has three or more. A symphony also tends to have a larger orchestra than an opera, with at least two violins, one viola, one cello, one bass, one contrabass, one flute, one oboe, one clarinet, one bassoon, one horn, one trumpet, one trombone, and one timpani. An opera will often include additional instruments such as a harp, a piano, a synthesizer, and a percussion section.