Django Reinhardt would play any chance he got. At the height of his fame, he'd stroll into a bistro with his guitar and busk — not for the spare change, but just to play. Michael Ochs Archives/Getty Images hide caption

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Liam Clancy (far right) with the Clancy Brothers in 1960. From left to right: Tommy Makem, Pat Clancy, Tom Clancy, and Liam Clancy. David Redfern/Redferns/Getty Images hide caption

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Swedish singer Victoria Bergsman, who records as Taken by Trees, reworks the melodies and rhythms of Pakistan on East of Eden. Victoria Bergsman hide caption

itoggle caption Victoria Bergsman

A collage of records. Christopher Toothman/NPR hide caption

itoggle caption Christopher Toothman/NPR