What is a lively Bohemian or Polish dance tune in 2-4 measure, with the third quaver accented. Polka jacket, a kind of knit jacket worn by women called?

polka — (Mus.) A lively Bohemian or Polish dance tune in 2-4 measure, with the third quaver accented. Polka jacket, a kind of knit jacket worn by women. (Webster's 1913.)

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