Most listeners thought they knew the singingthe pillow-soft pianissimos, the warm and velvety power even at full voiceeven though at first some did not recognize the singer. In five months, tiny (4 ft. 8½ in.), once-tubby (201 lbs.) Dorothy Maynor had lost 72 pounds by rigorous dieting, slimmed down to a more curvaceous 129. But last week, as the first guest soloist on the NBC Symphony's new U.S. Steel-sponsored Summer Concert series, the little Negro soprano proved that great singing does not necessarily come by the pound.
In rehearsal, she puzzled Guest Conductor Fritz...