Patsy Cline's life and career were cut short in a plane crash six decades ago. But her musical legacy endures and her influence palpable in a star-packed tribute concert appearing Friday night on PBS.

She was a legendary country and pop music crooner of the 1950s and ’60s, known for her smooth-as-silk contralto voice and throaty vocals. Now the life of Patsy Cline is returning to the stage in Point ...