A huge treasure trove of songs and interviews recorded by the legendary folklorist Alan Lomax from the 1940s into the 1990s have been digitized and made available online for free listening.
For a quick taste, here are a few examples from one of the best-known areas of Lomax's research, his recordings of traditional African American culture:
"John Henry" sung by prisoners at the Mississippi State Penitentiary, Parchman Farm, in 1947.
"Come Up Horsey," a children's lullaby sung in 1948 by Vera Hall, whose mother was a slave.
"In a Shanty in Old Shanty Town" performed by Big Bill Broonzy, 1952.
"Story of a slave who asked the devil to take his master," told by Bessie Jones in 1961.
But that's just scratching the surface of what's inside the enormous archive. Lomax's work extended far beyond the Deep South, into other areas and cultures of America, the Caribbean, Europe and Asia.
"He believed that all cultures should be looked at on an even playing field," his daughter Anna Lomax Wood told NPR. "Not that they're all alike. But they should be given the same dignity, or they had the same dignity and worth as any other."
You can listen to Rose's piece about the archive on the NPR website, as well as a 1990 interview with Lomax by Terry Gross of Fresh Air, which includes sample recordings from Woody Guthrie, Jelly Roll Morton, Lead Belly and Mississippi Fred McDowell.