As the Rosemary Hill EP begins, Sixpence None the Richer’s first release since 2012, Leigh Nash sings, “In the eye of the storm, I’m gonna thread the needle.” Now three decades after Nash met her musical partner Matt Slocum in New Braunfels, Texas, Sixpence is threading the needle in the sweet spot they have often longed for throughout a stormy yet momentous career.