WHEN I OPEN a guitar magazine and see a photo of a guitarist with his shirt off, covered in Harley-esque tattoos, showing off his commitment to weightlifting with a guitar strap that places his guitar below his knees, I become uninterested. But when I see an attractive woman in an evening dress holding a jazz guitar like it’s an extension of her arms, I become very interested indeed. Mary Osborne was more than a pretty face. She was a great swinging jazz guitarist that every fan of swing guitar should hear.