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in order to allow the protagonist
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to make a strong declaration
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or an emphatic statement
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and then enthusiastically
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exit stage left or stage right.
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It's a kind of convention to get the protagonist off the stage.
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Let's listen to a couple of seconds of this
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and we're going to come back to this particular cabaletta,
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"Sempre Libre."
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It's a famous one--
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virtually every major soprano has sung it--
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in which Violetta vows to remain always free.