Songs in the Key of Life: Laura Nyro's Angel in the Dark

THIS ALBUM IS incomplete, but so was Laura Nyro's life. It is the project on which she was working when she died of ovarian cancer four years ago this Sunday, aged 49, and it represents a precious addition to the luminous output of nine studio albums and two live recordings that attracted admiration and affection over the three decades of her career, even though she never truly fulfilled the music industry's early expectation that she would become one of the most popular performers of her generation.