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 .
Grob - Prandl was born in Vienna and studied at the conservatory there .
Grob - Prandl originally intended to become a piano teacher but the professors at the conservatory began to notice the size of Grob - Prandl 's voice and she was placed in a singing class .
Grob - Prandl was born in Vienna and studied at the conservatory there .