Episode 318: Over a 15-year career that began in Boston’s jazz and old-time scene, Nashville-based Miss Tess has distinguished herself with a hybrid blend of contemporary songwriting and vintage, swinging Americana. On her newest, the widely traveled artist taps a long love affair with Cajun country in Louisiana, yet it’s her own blend rather than a traditional homage. Our conversation spans her upbringing in Maryland, her passion for early blues and jazz, her fascinating musical relationships and her annual immersion in the Blackpot festival in Lafayette, where she made the new Cher Rêve.