[tag]PJ Harvey[/tag] is undoubtedly one of my favorite contemporary female vocalists, her unpredictable vocals have always been a mystery to me. Her voice can switch from intimacy to anger as if on a hair trigger, a quality or better yet gift few artists posses and master. Now after 15 years of experience in the music industry Polly Jean released her eighth album this week, called White Chalk, in which she ditched her trademark guitar for…