Carol Sloane, a superb singer with remarkable pitch who was widely considered to be the last great female big-band and club jazz vocalist to emerge at the dawn of the 1960s, just before the British Invasion swept over the record industry, died on January 23, 2023. She was 85. “Sloaney,” as she was known to friends, had Sarah Vaughan’s phrasing in the 1960s but also shared the round richness and twinkle of Ella Fitzgerald…