Shortly after September 11, 2001, a small, heavy package wrapped in brown paper arrived in the mail at the Woody Guthrie Archives in New York City. Inside was a mess of wires.

Guthrie’s daughter Nora eventually figured out that the suspicious package wasn’t a bomb, but rather a recording of her father on a device that predated magnetic tape. After a year of searching, she managed to track down someone with the equipment to play it.

What she finally heard was a bootleg recording of her father singing a live performance in 1949. It was the first time she had ever heard him perform in front of a live audience. He had developed Huntington’s chorea and stopped performing when she was a child, and she thought he had never been recorded live.
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The result has been nominated for a Grammy.

Math Trek: The Grammy in Mathematics, Science News Online, Feb. 9, 2008