At last when the window in Pogner's house opened wide and revealed a maiden seated there, Hans Sachs ceased. He had a plan. He consented to listen to Beckmesser's serenade if he might be permitted to mark each error by tapping on his lapstone. For there were shoes to be finished, and that was the only way. The plan did not please Beckmesser at all, but, since he had no choice, he was forced to agree. So, by way of beginning, he strummed a prelude on his lute, and looked for favor at the figure in the window. But before he had time to get his breath Hans Sachs had struck the shoe a mighty blow and had shouted,-- "Now begin!" Beckmesser started. Then he began to sing. But a sorry performance it was. The nervousness, the anger, the malice, had entered his voice and had made it harsh and squeaky by turns. He sang a line. It was out of tune. Down went the hammer. He scowled and began another line. It did not rhyme. The hammer fell again. And so, becoming more and more enraged, Beckmesser sang more and more falsely, so that Hans Sachs was kept busy beating a veritable tattoo upon his lapstone. Beckmesser squeaked, he bawled, he howled, and all the time Hans Sachs hammered and hammered, until both shoes were done. This howling and hammering awakened the people in the houses all about. Shutters were pushed back, windows were opened, nightcaps appeared and sleepy voices ordered them to be silent. David, hearing the tumult, peered out. When he saw a strange man before the window serenading a lady whom he at once perceived to be his Lena, he rushed out, cudgel in hand. He fell upon the unfortunate musician, who yelled so loudly that the whole neighborhood was aroused. The apprentices rushed out and fell upon David, and the Masters rushed out and fell upon the apprentices, and before any one knew what it was all about, everybody was hitting everybody else. The clamor and commotion grew and grew apace. People came running from all sides, and joined in the general hubbub and confusion. Only Hans Sachs kept a cool head. Seeing that Eva and her knight were about to make use of the excitement to run away, he intercepted them. First he pushed Eva into her father's house. Then, grasping Walter by the arm, he thrust him into his own workshop and, following him, closed the door. The street fight continued. Suddenly the sound of the watchman's horn was heard in the distance. The crowd was seized with a panic of fear. As if by magic, it dispersed. The people suddenly disappeared into the houses, down the alleys, behind doors, anywhere. The lights were extinguished. All was still. When the sleepy watchman came to that street, he rubbed his eyes, stared about him in surprise, and then shook his head. Could he have been dreaming? He thought that he had heard a noise. Holding his torch aloft, he blew his horn and cried out: