The new album Lost And Found compiles unheard recordings from the Buena Vista Social Club sessions, as well as solo work from the musicians involved. Alejandro Perez /Courtesy of the artist hide caption

itoggle caption Alejandro Perez /Courtesy of the artist

The crowd was all smiles during NPR Music's showcase at this year's South By Southwest music festival. We can't send you back in time to hear the shows, but you can listen to some of Bob Boilen's favorite performers from the festival. Adam Kissick for NPR hide caption

itoggle caption Adam Kissick for NPR