The most insinuating of melodies floating over an obbligato of the solo violoncello "like a love charm," as Gounod says. Then the celebration of her victory when she captures one of his hands and knows that he is yielding:—

[Musical excerpt—"Pace, pace o vita mia">[

A new melody, blither, happier, but always the violoncello murmuring in blissful harmony with the seductive voice and rejoicing in the cunning witcheries which lull Masetto's suspicions to sleep. Now all go into Don Giovanni's palace, from which the sounds of dance music and revelry are floating out. Donna Elvira, Donna Anna, and Don Ottavio, who come to confront him who has wronged them all, are specially bidden, as was the custom, because they appeared in masks. Within gayety is supreme. A royal host, this Don Giovanni! Not only are there refreshments for all, but he has humored both classes of guests in the arrangement of the programme of dances. Let there be a minuet, a country-dance, and an allemande, he had said to Leporello in that dizzying song of instruction which whirls past our senses like a mad wind: "Finch' han dal vino." No one so happy as Mozart when it came to providing the music for these dances. Would you connoisseurs in music like counterpoint? We shall give it you;—three dances shall proceed at once and together, despite their warring duple and triple rhythms:—

[Musical excerpts]

Louis Viardot, who wrote a little book describing the autograph of "Don Giovanni," says that Mozart wrote in the score where the three bands play thus simultaneously the word accordano as a direction to the stage musicians to imitate the action of tuning their instruments before falling in with their music. Of this fact the reprint of the libretto as used at Prague and Vienna contains no mention, but a foot-note gives other stage directions which indicate how desirous Mozart was that his ingenious and humorous conceit should not be overlooked. At the point where the minuet, which was the dance of people of quality, is played, he remarked, "Don Ottavio dances the minuet with Donna Anna"; at the contra-dance in 2-4 time, "Don Giovanni begins to dance a contra-dance with Zerlina"; at the entrance of the waltz, "Leporello dances a 'Teitsch' with Masetto." The proper execution of Mozart's elaborate scheme puts the resources of an opera-house to a pretty severe test, but there is ample reward in the result. Pity that, as a rule, so little intelligence is shown by the ballet master in arranging the dances! There is a special significance in Mozart's direction that the cavalier humor the peasant girl by stepping a country-dance with her, which is all lost when he attempts to lead her into the aristocratic minuet, as is usually done.

At the height of the festivities, Don Giovanni succeeds in leading Zerlina into an inner room, from which comes a piercing shriek a moment later. Anticipating trouble, Leporello hastens to his master to warn him. Don Ottavio and his friends storm the door of the anteroom, out of which now comes Don Giovanni dragging Leporello and uttering threats of punishment against him. The trick does not succeed. Don Ottavio removes his mask and draws his sword; Donna Anna and Donna Elvira confront the villain. The musicians, servants, and rustics run away in affright. For a moment Don Giovanni loses presence of mind, but, his wits and courage returning, he beats down the sword of Don Ottavio, and, with Leporello, makes good his escape.

The incidents of the second act move with less rapidity, and, until the fateful dénouement is reached, on a lower plane of interest than those of the first, which have been narrated. Don Giovanni turns his attentions to the handsome waiting-maid of Donna Elvira. To get the mistress out of the way he persuades Leporello to exchange cloaks and hats with him and station himself before her balcony window, while he utters words of tenderness and feigned repentance. The lady listens and descends to the garden, where Leporello receives her with effusive protestations; but Don Giovanni rudely disturbs them, and they run away. Then the libertine, in the habit of his valet, serenades his new charmer. The song, "Deh vieni alla finestra," is of melting tenderness and gallantry; words and music float graciously on the evening air in company with a delightfully piquant tune picked out on a mandolin. The maid is drawn to the window, and Don Giovanni is in full expectation of another triumph, when Masetto confronts him with a rabble of peasants, all armed. They are in search of the miscreant who had attempted to outrage Zerlina. Don Giovanni is protected by his disguise. He feigns willingness to help in the hunt, and rids himself of Masetto's companions by sending them on a fool's errand to distant parts of the garden. Then he cunningly possesses himself of Masetto's weapons and belabors him stoutly with his own cudgel. He makes off, and Zerlina, hearing Masetto's cries, hurries in to heal his hurts with pretty endearments. (Air: "Vedrai carino.") Most unaccountably, as it will seem to those who seek for consistency and reason in all parts of the play, all of its actors except Don Giovanni find themselves together in a courtyard (or room, according to the notions of the stage manager). Leporello is trying to escape from Elvira, who still thinks him Don Giovanni, and is first confronted by Masetto and Zerlina and then by Ottavio and Anna. He is still in his master's hat and cloak, and is taken vigorously to task, but discloses his identity when it becomes necessary in order to escape a beating. Convinced at last that Don Giovanni is the murderer of the Commandant, Don Ottavio commends his love to the care of her friends and goes to denounce the libertine to the officers of the law.

The last scene is reached. Don Giovanni, seated at his table, eats, drinks, indulges in badinage with his servant, and listens to the music of his private band. The musicians play melodies from popular operas of the period in which Mozart wrote—not Spanish melodies of the unfixed time in which the veritable Don Juan may have lived:—

[Musical excerpts—From Martin's "Una cosa rara." From "Fra i due litiganti" by Sarti. From "Nozze di Figaro.">[

Mozart feared anachronisms as little as Shakespeare. His Don Giovanni was contemporary with himself and familiar with the repertory of the Vienna Opera. The autograph discloses that the ingenious conceit was wholly Mozart's. It was he who wrote the words with which Leporello greets the melodies from "Una cosa rara," "I due Litiganti," and "Le Nozze di Figaro," and when Leporello hailed the tune "Non piu andrai" from the last opera with words "Questo poi la conosco pur troppo" ("This we know but too well"), he doubtless scored a point with his first audience in Prague which the German translator of the opera never dreamed of. Even the German critics of to-day seem dense in their unwillingness to credit Mozart with a purely amiable purpose in quoting the operas of his rivals, Martin and Sarti. The latter showed himself ungrateful for kindnesses received at Mozart's hands by publicly denouncing an harmonic progression in one of the famous six quartets dedicated to Haydn as a barbarism, but there was no ill-will in the use of the air from "I due Litiganti" as supper music for the delectation of the Don. Mozart liked the melody, and had written variations on it for the pianoforte.