"All forms of language have been exhausted to praise the stupor of grief, the passion, the despair expressed in this sublime number," says a writer in the Clément and Larousse Dictionnaire des Opéras. It is equaled only by the lines of Virgil:

Vox ipsa et frigida lingua,
"Ah! miseram Eurydicen," anima fugiente, vocabat;
"Eurydicen," toto referabant flumine ripae.

Or as Dryden translated these lines of Virgil:

E’en then his trembling tongue invok’d his bride;
With his last voice, "Eurydice," he cried,
"Eurydice," the rocks and river banks replied.

In fact it is so beautiful that Amor, affected by the grief of Orpheus, appears to him, touches Eurydice and restores her to life and to her husband’s arms.

The legend of "Orpheus and Eurydice" as related in Virgil’s Georgics, from which are the lines just quoted is one of the classics of antiquity. In "Orfeo ed Euridice" Gluck has preserved the chaste classicism of the original. Orpheus was the son of Apollo and the muse Calliope. He played so divinely that trees uprooted themselves and rocks were loosened from their fastnesses in order to follow him. His bride, Eurydice, was the daughter of a Thracian shepherd.

The role of Orpheus was written for the celebrated male contralto Guadagni. For the Paris production the composer added three bars to the most famous number of the score, the "Che faro senza Euridice," illustrated above. These presumably were the three last bars, the concluding phrases of the peroration of the immortal air. He also was obliged to transpose the part of Orpheus for the tenor Legros, for whom he introduced a vocal number not only entirely out of keeping with the role, but not even of his own composition -- a bravura aria from "Tancred," an opera by the obscure Italian composer Fernandino Bertoni. It is believed that the tenor importuned Gluck for something that would show off his voice, whereupon the composer handed him the Bertoni air. Legros introduced it at the end of the first act, where to this day it remains in the printed score.

When the tenor Nourrit sang the role many years later, he substituted the far more appropriate aria, "O transport, ô désordre extrême" (O transport, O ecstasy extreme) from Gluck’s own "Echo and Narcissus."

But that the opera, as it came from Gluck’s pen, required nothing more, appeared in the notable revival at the Théâtre Lyrique, Paris, November, 1859, under Berlioz’s direction, when that distinguished composer restored the role of Orpheus to its original form and for a hundred and fifty nights the celebrated contralto, Pauline Viardot-Garcia, sang it to enthusiastic houses.

The best production of the work in this country was that of the American Opera Company. It was suited, as no other opera was, to the exact capacity of that ill-starred organization. The representation was in four acts instead of three, the second act being divided into two, a division to which it easily lends itself.

The opera has been the object of unstinted praise. Of the second act the same French authority quoted above says that from the first note to the last, it is "a complete masterpiece and one of the most astonishing productions of the human mind. The chorus of demons, ‘What mortal dares,’ in turn questions, becomes wrathful, bursts into a turmoil of threats, gradually becomes tranquil and is hushed, as if subdued and conquered by the music of Orpheus’s lyre. What is more moving than the phrase ‘Laissez-vous toucher par mes pleurs’? (A thousand griefs, threatening shades.) Seeing a large audience captivated by this mythological subject; an audience mixed, frivolous and unthinking, transported and swayed by this scene, one recognizes the real power of music. The composer conquered his hearers as his Orpheus succeeded in subduing the Furies. Nowhere, in no work, is the effect more gripping. The scene in the Elysian fields also has its beauties. The air of Eurydice, the chorus of happy shades, have the breath of inalterable calm, peace and serenity."

Gaetano Guadagni, who created the role of Orpheus, was one of the most famous male contralti of the eighteenth century. Handel assigned to him contralto parts in the "Messiah" and "Samson," and it was Gluck himself who procured his engagement at Vienna. The French production of the opera was preceded by an act of homage, which showed the interest of the French in Gluck’s work. For while it had its first performance in Vienna, the score was first printed in Paris and at the expense of Count Durazzo. The success of the Paris production was so great that Gluck’s former pupil, Marie Antoinette, granted him a pension of 6,000 francs with an addition of the same sum for every fresh work he should produce on the French stage.

The libretto of Calzabigi was, for its day, charged with a vast amount of human interest, passion, and dramatic intensity. In these particulars it was as novel as Gluck’s score, and possibly had an influence upon him in the direction of his operatic reforms.