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The music was by Lead Belly, the singular and impassioned folk singer who was born Huddie Ledbetter and is buried just a dozen miles from the museum site, and the words were as much by him as anyone else, voiced by his great-nephew Alvin Singh.
(2009 Jan 12 / John Andrew Prime)
http://www.shreveporttimes.com/article/20090112/NEWS01/901120325