"It shall never be produced till I find the woman in whose powers I have absolute confidence to sing 'Leonora.' She need not be beautiful, change her costume ten times, nor break her throat with roulades: but she must have _one_ thing besides her voice." He would not disclose what special quality he demanded; and when his friends persisted in urging the production of his first, last, and only opera, Beethoven went into a great rage and declared if the subject were ever mentioned again, he would burn the manuscript. At one time friends begged him to hear a new prima donna, Wilhelmina Schroeder, the daughter of a great actress, believing that in her he would find his "Leonora." This enraged him still more. The idea of entrusting his beloved composition to a girl no more than sixteen years old! His appearance at that time is thus described: "At the same hour every afternoon a tall man walked alone on the so-called Wasserglacis (Vienna). Every one reverentially avoided him. Neither heat nor cold made him hasten his steps; no passer-by arrested his eye; he strode slowly, firmly and proudly along, with glance bent downward, and with hands clasped behind his back. You felt that he was some extraordinary being, and that the might of genius encircled this majestic head with its glory. Gray hair grew thickly around his magnificent brow, but he noticed not the spring breeze that played sportively among it and pushed it in his eyes. Every child knew: 'that is Ludwig van Beethoven, who has composed such wondrously beautiful music.'" One day, during one of these outings a fearful storm arose, and he noticed a beautiful young woman, whom he had frequently seen in his walks, frightened but standing still without protection from the weather. She stared at him with such peculiar devotion and entreaty that he stopped and asked her what she did there in the storm. She had the appearance of a child, and great simplicity of manner. She told him she waited to see him. He, being surprised at this, questioned her, and she declared she was Wilhelmina Schroeder, who longed for nothing but to sing his Leonora, of which all Vienna had heard. He took her to his home, she sang the part for him, and at once he accepted her. It was she who first sang "Fidelio," and she who had the "quality" that Beethoven demanded: the quality of kindness. It is said that her face was instinct with gentleness and her voice exquisitely beautiful. It was almost the last thing that Beethoven heard. His deafness was already upon him, but he heard her voice; heard his beloved opera sung, and was so much overcome by the beauty of the young girl's art that during the performance he fainted.