George Reid and Aluna Francis have become darlings of the European music festival circuit without releasing an album. Body Talk, their full-length debut as AlunaGeorge, is out Monday. Courtesy of the artist hide caption

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Born in Texas and settled in Nashville, Tenn., Guy Clark has mentored generations of artists, including Rodney Crowell, Lyle Lovett and Steve Earle — all of whom cite his keen editing skills and prize his stamp of approval. Jim McGuire/Courtesy of the artist hide caption

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Grant Hart has had an enigmatic career since his days drumming with the influential punk trio Hüsker Dü. Courtesy of the artist hide caption

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Jason Isbell was previously a member of Drive-By Truckers. His solo albums include Sirens of the Ditch and Here We Rest. Eric England/Courtesy of the artist hide caption

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Swedish musician Anna von Hausswolff says she was drawn to the church organ by its physicality: "When you play it, you can really feel it because you're sitting close to the pipes. It's almost as if you're becoming a part of the instrument." Anders Nydam/Courtesy of the artist hide caption

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Michael Alpert and Ethel Raim perform as part of the An-sky Yiddish Heritage Ensemble. Janina Wurbs/Courtesy of The Center for Traditional Music and Dance hide caption

itoggle caption Janina Wurbs/Courtesy of The Center for Traditional Music and Dance