Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Gertrude Grob-Prandl (11 November 1917 16 May 1995) was an Austrian Wagnerian soprano. Grob-Prandl was born in Vienna and studied at the conservatory there. She originally intended to become a piano teacher but the professors at the conservatory began to notice the size of her voice and she was placed in a singing class. She made her debut at the Vienna Volksoper as Santuzza in Cavalleria rusticana. She graduated to heavier roles such as Isolde, Brunnhilde and Turandot. She retired in 1972.