If you've ever heard The Blue Danube, you've heard his name without knowing it.

Johann Strauss II was born in Vienna on October 25, 1825. The son of a famous composer, he went on to eclipse his father, writing hundreds of waltzes, polkas and operettas, including Die Fledermaus.

Known as the "Waltz King," he turned a dance once considered scandalous into the sound of elegant ballrooms around the world. His music still opens Vienna's New Year's Concert and shows up in films, from 2001: A Space Odyssey onward.

What piece of classical music do you never get tired of?

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