Tartit performs at the Festival au Desert. Chris Nolan/Courtesy of the artist hide caption

itoggle caption Chris Nolan/Courtesy of the artist

Yo La Tengo's new album is titled Fade. Carlie Armstron/Courtesy of the artist hide caption

itoggle caption Carlie Armstron/Courtesy of the artist

Music by guitarist Fields Ward appears in the new collection Work Hard, Play Hard, Pray Hard: Hard Time, Good Time & End Time Music, 1923-1936. Library of Congress Prints and Photographs Division hide caption

itoggle caption Library of Congress Prints and Photographs Division

Samuel Yirga plays Ethiopian standards with a voracious talent that helps him savor each musical flavor. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

The Analog Players Society was assembled by a producer and percussionist in his mid-30s who calls himself Amon. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Boban i Marko Markovic Orkestar performs onstage in 2008. Roger Kisby/Getty Images hide caption

itoggle caption Roger Kisby/Getty Images

Cheb i Sabbah. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Joan Soriano. Alicia Santistevan hide caption

itoggle caption Alicia Santistevan

Hugh Masekela. courtesy of the artist hide caption

itoggle caption courtesy of the artist

El Rego, the godfather of Benin funk, and his band The Commandos. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Iron Butterfly circa 1970. Michael Ochs Archives/Getty Images hide caption

itoggle caption Michael Ochs Archives/Getty Images

Cheer-Accident. Kerry Anne Kronke hide caption

itoggle caption Kerry Anne Kronke

Elvis Presley. Getty Images/Staff hide caption

itoggle caption Getty Images/Staff