Five years elapsed between the production of 'Orfeo' and of Gluck's next great opera, 'Alceste'; but that these years were not wasted is proved by the great advance which is perceptible in the score of the later work. The libretto of 'Alceste' is in many ways superior to that of 'Orfeo,' and Gluck's share of the work shows an incontestable improvement upon anything he had yet done. His touch is firmer, and he rarely shows that inclination to drop back into the old conventional style, which occasionally mars the beauty of 'Orfeo.' Gluck wrote a preface to the published score of 'Alceste,' which is one of the most interesting documents in the history of music. It proves conclusively—not that any proof is necessary—that the composer had thought long and seriously about the scope of his art, and that the reforms which he introduced were a deliberate attempt to reconstruct opera upon a new basis of ideal beauty. If he sometimes failed to act up to his own theories, it must be remembered in what school he had been trained, and how difficult must have been the attempt to cast off in a moment the style which had been habitual to him for so many years.
When 'Alceste' was produced in Paris in 1776, Gluck made some alterations in the score, some of which were scarcely improvements. In his later years he became so completely identified with the French school that the later version is now the more familiar.
The opera opens before the palace at Pheræ, where the people are gathered to pray Heaven to spare the life of Admetus, who lies at the point of death. Alcestis appears, and, after an air of great dignity and beauty, bids the people follow her to the temple, there to renew their supplications. The next scene shows the temple of Apollo. The high priest and the people make passionate appeal to the god for the life of their king, and the oracle replies that Admetus must perish, if no other will die in his place. The people, seized with terror, fly from the place, and Alcestis, left alone, determines to give up her own life for that of her husband. The high priest accepts her devotion, and in the famous air 'Divinités du Styx,' she offers herself a willing sacrifice to the gods below. In the original version the second act opened with a scene in a gloomy forest, in which Alcestis interviews the spirits of Death, and, after renewing her vow, obtains leave to return and bid farewell to her husband. The music of this scene is exceedingly impressive, and intrinsically it must have been one of the finest in the opera, but it does not advance the action in the least, and its omission sensibly increases the tragic effect of the drama. In the later version the act begins with the rejoicings of the people at the recovery of Admetus. Alcestis appears, and after vainly endeavouring to conceal her anguish from the eyes of Admetus is forced to admit that she is the victim whose death is to restore him to life. Admetus passionately refuses the sacrifice, and declares that he will rather die with her than allow her to immolate herself on his account. He rushes wildly into the palace, and Alcestis bids farewell to life in an air of extraordinary pathos and beauty. The third act opens with the lamentations of the people for their departed queen. Hercules, released for a moment from his labours, enters and asks for Admetus. He is horrified at the news of the calamity which has befallen his friend, and announces his resolve of rescuing Alcestis from the clutches of Death. Meanwhile Alcestis has reached the portals of the underworld, and is about to surrender herself to the powers of Hell. Admetus, who has not yet given up hope of persuading her to relinquish her purpose, appears, and pleads passionately with her to leave him to his doom. His prayers are vain, and Alcestis is tearing herself for the last time from his arms, when Hercules rushes in. After a short struggle he defeats the powers of Death and restores Alcestis to her husband. The character of Hercules did not appear in the earlier version of the opera, and in fact was not introduced until after Gluck had left Paris, a few days after the production of 'Alceste.' Most of the music allotted to him is probably not by Gluck at all, but seems to have been written by Gossec, who was at that time one of the rising musicians in Paris. The close of the opera is certainly inferior to the earlier parts, but the introduction of Hercules is a great improvement upon the original version of the last act, in which the rescue of Alcestis is effected by Apollo. The French librettist did not treat the episode cleverly, and indeed all the last scene is terribly prosaic, and lacking in poetical atmosphere. To see how the appearance of the lusty hero in the halls of woe can heighten the tragic interest by the sheer force of contrast, we must turn to the 'Alcestis' of Euripides, where the death of Alcestis and the strange conflict of Hercules with Death is treated with just that touch of mystery and unearthliness which is absent from the libretto which Gluck was called upon to set. Of the music of 'Alceste,' its passion and intensity, it is impossible to speak too highly. It has pages of miraculous power, in which the deepest tragedy and the most poignant pathos are depicted with unfaltering certainty. It is strange to think by what simple means Gluck scaled the loftiest heights. Compared with our modern orchestra the poverty of the resources upon which he depended seems almost ludicrous. Even in the vocal part of 'Alceste' he was so careful to avoid anything like the sensuous beauty of the Italian style, that sometimes he fell into the opposite extreme and wrote merely arid rhetoric. Yet he held so consistently before him his ideal of dramatic truth, that his music has survived all changes of taste and fashion, and still delights connoisseurs as fully as on the day it was produced. 'Paride ed Elena,' Gluck's next great work, shows his genius under a more lyrical aspect. Here he gives freer reign to the romanticism which he had designedly checked in 'Alceste,' and much of the music seems in a measure to anticipate the new influences which Mozart was afterwards to infuse into German music. Unfortunately the libretto of 'Paride ed Elena,' though possessing great poetical merit, is monotonous and deficient in incident, so that the opera has never won the success which it deserves, and is now almost completely forgotten.
The admiration for the French school of opera which had been aroused in Gluck by hearing the works of Rameau was not by any means a passing fancy. His music proves that the French school had more influence upon his development than the Italian, so it was only natural that he should wish to have an opportunity of introducing his works to Paris. That opportunity came in 1774, when, after weary months of intrigue and disappointment, his 'Iphigéne en Aulide' was produced at the Académie Royale de Musique. After that time Gluck wrote all his greatest works for the French stage, and became so completely identified with the country of his adoption, that nowadays we are far more apt to think of him as a French than as a German composer. 'Iphigénie en Aulide' is founded upon Racine's play, which in its turn had been derived from the tragedy of Euripides. The scene of the opera is laid at Aulis, where the Greek fleet is prevented by contrary winds from starting for Troy. Diana, who has been unwittingly insulted by Agamemnon, demands a human sacrifice, and Iphigenia, the guiltless daughter of Agamemnon, has been named by the high priest Calchas as the victim. Iphigenia and her mother Clytemnestra are on their way to join the fleet at Aulis, and Agamemnon has sent a despairing message to bid them return home, hoping thus to avoid the necessity of sacrificing his child. Meanwhile the Greek hosts, impatient of delay, clamour for the victim, and are only appeased by the assurance of Calchas that the sacrifice shall take place that very day. Left alone with Agamemnon, Calchas entreats him to submit to the will of the gods. Agamemnon, torn by conflicting emotions, at first refuses, but afterwards, relying upon the message which he has sent to his wife and daughter, promises that if Iphigenia sets foot in Aulis he will give her up to death. He has hardly spoken the words when shouts of joy announce the arrival of Clytemnestra and Iphigenia. The message has miscarried, and they are already in the camp. As a last resource Agamemnon now tells Clytemnestra that Achilles, the lover of her daughter, is false, hoping that this will drive her from the camp. Clytemnestra calls upon Iphigenia to thrust her betrayer from her bosom, and Iphigenia replies so heroically that it seems as though Agamemnon's plot to save his daughter's life might actually succeed. Unfortunately Achilles himself appears, and, after a scene of reproach and recrimination, succeeds in dispelling Iphigenia's doubts and winning her to complete reconciliation.
The second act begins with the rejoicings over the marriage of Iphigenia. The general joy is turned to lamentation by the discovery of Agamemnon's vow and the impending doom of Iphigenia. Clytemnestra passionately entreats Achilles to save her daughter, which he promises to do, though Iphigenia professes herself ready to obey her father. In the following scene Achilles meets Agamemnon, and, after a long altercation, swears to defend Iphigenia with the last drop of his blood. He rushes off, and Agamemnon is left in anguish to weigh his love for his daughter against his dread of the angry gods, Love triumphs and he sends Areas, his attendant, to bid Clytemnestra fly with Iphigenia home to Mycenae.
In the third act the Greeks are angrily demanding their victim. Achilles prays Iphigenia to fly with him, but she is constant to her idea of duty, and bids him a pathetic farewell. Achilles, however, is not to be persuaded, and in an access of noble rage swears to slay the priest upon the steps of the altar rather than submit to the sacrifice of his love. After another farewell scene with her mother Iphigenia is led off, while Clytemnestra, seeing in imagination her daughter under the knife of the priest, bursts forth into passionate blasphemy. Achilles and his Thessalian followers rush in to save Iphigenia, and for a time the contest rages fiercely, but eighteenth-century convention steps in. Calchas stops the combat, saying that the gods are at length appeased; Iphigenia is restored to Achilles, and the opera ends with general rejoicings.
'Iphigénie en Aulide' gave Gluck a finer opportunity than he had yet had. The canvas is broader than in 'Alceste' or 'Orfeo,' and the emotions are more varied. The human interest, too, is more evenly sustained, and the supernatural element, which played so important a part in the two earlier works, is almost entirely absent. Nevertheless, fine as much of the music is, the restraint which Gluck exercised over himself is too plainly perceptible, and the result is that many of the scenes are stiff and frigid. There is scarcely a trace of the delightful lyricism which rushes through 'Paride ed Elena' like a flood of resistless delight. Gluck had set his ideal of perfect declamatory truth firmly before him, and he resisted every temptation to swerve into the paths of mere musical beauty. He had not yet learnt how to combine the two styles. He had not yet grasped the fact that in the noblest music truth and beauty are one and the same thing.
In 'Armide,' produced in 1777, he made another step forward. The libretto was the same as that used by Lulli nearly a hundred years before. The legend, already immortalised by Tasso, was strangely different from the classical stories which had hitherto inspired his greatest works. The opening scene strikes the note of romanticism which echoes through the whole opera. Armida, a princess deeply versed in magic arts, laments that one knight, and one only, in the army of the Crusaders has proved blind to her charms. All the rest are at her feet, but Rinaldo alone is obdurate. She has had a boding dream, moreover, in which Rinaldo has vanquished her, and all the consolations of her maidens cannot restore her peace of mind. Hidraot, her uncle, entreats her to choose a husband, but she declares that she will bestow her hand upon no one but the conqueror of Rinaldo. While the chorus is celebrating her charms, Arontes, a Paynim warrior, enters bleeding and wounded, and tells how the prowess of a single knight has robbed him of his captives. Armida at once recognises the hand of the recalcitrant Rinaldo, and the act ends with her vows of vengeance against the invincible hero.
The second act shows Rinaldo in quest of adventures which may win him the favour of Godfrey of Bouillon, whose wrath he has incurred. Armida's enchantments lead him to her magic gardens, where, amidst scenes of voluptuous beauty, he yields to the fascinations of the place, lays down his arms, and sinks into sleep. Armida rushes in, dagger in hand, but the sight of the sleeping hero is too potent for her, and overcome by passion, she bids the spirits of the air transport them to the bounds of the universe. In the third act we find that Rinaldo has rejected the love of the enchantress. Armida is inconsolable; she is ashamed of her weakness, and will not listen to the well-meaning consolations of her attendants. She calls upon the spirit of Hate, but when he appears she rejects his aid, and still clings desperately to her fatal passion. The fourth act, which is entirely superfluous, is devoted to the adventures in the enchanted garden of Ubaldo and a Danish knight, two Crusaders who have set forth with the intention of rescuing Rinaldo from the clutches of the sorceress. The fifth act takes place in Armida's palace. Rinaldo's proud spirit has at length been subdued, and he is completely the slave of the enchantress. The duet between the lovers is of the most bewitching loveliness, and much of it curiously anticipates the romantic element which was to burst forth in a future generation. Armida tears herself from Rinaldo's arms, and leaves him to be entertained by a ballet of spirits, while she transacts some business with the powers below. Ubaldo and the Danish knight now burst in, and soon bring Rinaldo to a proper frame of mind. He takes a polite farewell of Armida, who in vain attempts to prevent his going, and is walked off by his two Mentors. Left alone, Armida calls on her demons to destroy the palace, and the opera ends in wild confusion and tumult.
To say that 'Armide' recalls the romantic grace of 'Paride ed Elena,' is but half the truth. The lyrical grace of the earlier work is as it were concentrated and condensed in a series of pictures which for voluptuous beauty surpass anything that had been written before Gluck's day. Against the background formed by the magical splendour of the enchanted garden, the figure of Armida stands out in striking relief. The mingled pride and passion of the imperious princess are drawn with wonderful art. Even while her passion brings her to the feet of her conqueror, her haughty spirit rebels against her fate. Such weaknesses as the opera contains are principally attributable to the libretto, which is ill-constructed, and cold and formal in diction. Rinaldo is rather a colourless person, and the other characters are for the most part merely lay-figures, though the grim figure of Hate is drawn with extraordinary power. But upon Armida the composer concentrated the full lens of his genius, and for her he wrote music which satisfies every requirement of dramatic truth, without losing touch of the lyrical beauty and persuasive passion which breathes life into soulless clay.