Jenny Lind was a popular singer born in Sweden in 1820. Everyone liked her so much that a number of tunes and songs were written about and for her, including polkas and other tunes. The first reference to the Jenny Lind "Polka" is in a collection of popular tunes for cornet orchestras, published in 1846.
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F2 AF G2 BG|A2 f2 fe f2|g2 e2 c2 ec|d2 d2 d4|