Austrian pianist Paul Wittgenstein (who later became an American citizen) lost an arm in World War I. He commissioned composers including Maurice Ravel to write pieces for the left hand alone. Bettmann/CORBIS hide caption

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The Great War At 100: Music Of Conflict And Remembrance
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Leah Fleisher Cures What Ails Musicians
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'Two Hands,' an Oscar Nominee with Heart
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'Performance Today' at 20: A Look Back
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