The dance music near the end is appropriate for the time period. It's a gavotte from Terpsichore, a large collection of dance music published in 1612 by German composer and musician Michael Praetorius. The original novel begins in 1625, so the Terpsichore collection would have been known then.
The Three Musketeers
The hot-headed young D'Artagnan along with three former legendary but now down on their luck Musketeers must unite and defeat a beautiful double agent and her villainous employer from seizing the French throne and engulfing Europe in war.
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