Sarah Jarosz performs at the 2013 Newport Folk Festival. Meagan Beauchemin/NPR hide caption

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Okkervil River's new album, The Silver Gymnasium, comes out Sept. 3. Ben Sklar/Courtesy of the artist hide caption

itoggle caption Ben Sklar/Courtesy of the artist

Volcano Choir's new album, Repave, comes out Sept. 3. Cameron Wittig/Courtesy of the artist hide caption

itoggle caption Cameron Wittig/Courtesy of the artist

Neko Case's new album, The Worse Things Get, The Harder I Fight, The Harder I Fight, The More I Love You, comes out Sept. 3. Emily Shur/Courtesy of the artist hide caption

itoggle caption Emily Shur/Courtesy of the artist

Mother Falcon performs a Tiny Desk Concert in July 2013. Hayley Bartels/NPR hide caption

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Alpine performs at a Tiny Desk Concert in June 2013. Chloe Coleman/Chloe Coleman/NPR hide caption

itoggle caption Chloe Coleman/Chloe Coleman/NPR