Atys (Attis) is a tragédie en musique, an early form of French opera, in a prologue and five acts by Jean-Baptiste Lully to a libretto by Philippe Quinault after Ovid's Fasti.

Although Atys was met with indifference by Paris audiences, it became known as "the king's opera" because of Louis XIV's fondness for it; it was given at the Château de Fontainebleau in August 1677 and repeated at Saint-Germain in 1678 and 1682.

The role of Atys was sung by Howard Crook, Cybèle by Guillemette Laurens and Sangaride by Agnès Mellon.

It was also performed that same year at the Théâtre de Caen, Montpellier Opera, on tour in Brazil and at the Innsbruck Festival of Early Music.

[7] Villégier's production was recreated in 2011 with a gift of $3.1 million from the American businessman Ronald P. Stanton[8] and performed at the Salle Favart.

Lully's prologues normally served to comment on current events at the court of Louis XIV in a way that flattered the king.

When the opera was premiered in 1676, France was at war with the Netherlands, and the French winter campaign had resulted in the tragic death of Henri de la Tour.

Just as the hero is about to leave for battle, Melpomene arrives and, in a gesture functioning as a transition to Act I, proceeds to tell the story of Atys in the recitative "Retirez vous."

Idas mocks him in Scene 2, suggesting his motivation might be too much love for the goddess in the air "Vous veillez lorsque tout sommeil."

Celenus and Atys both announce their desire to be selected as the high priest of Cybèle in Scene 1's recitative "N'avancez plus loin."

The chorus of Nations sings "Célébrons la gloire immortelle" to celebrate Cybèle's choice, followed by a dance by the Zephyrs, which concludes the act in only four scenes.

[19] Although many Venetian traditions were not appreciated by the French, Lully and his librettist Quinnault clearly accepted the sleep scene type.

During Scene 1, Atys contemplates his unfortunate dilemma due to his love for Sangaride (who is engaged to King Celenus against her will) in the air "Que servent les faveurs."

When she is left alone with Melissa in Scene 7, she sings the lament "L'ingrat Atys," also based on the chromatically descending tetrachord in A minor (A-G#-G-F#-F-E).

She has interpreted Atys's confusion as love for Cybèle and laments in front of Doris and Idas who interject various duets.

He and Sangaride are left alone in Scene 4 and engaged in a somewhat heated discussion involving rapid alternation between recitative and air styles.

With his power as the high priest of Cybèle, Atys orders Sangaride's father to cancel the wedding to King Celenus.

The River of Sangar approves Sangaride's choice in a chorus "Nous approuvons votre choix," followed by "Que l'on chante."

King Celenus finds out that the wedding plans have been cancelled and he confronts Cybèle in a lengthy recitative dialogue in Scene 1.

As Atys and Sangaride enter in Scene 2, Cybèle and Celanus begin scolding them with a duet: "Venez vous livrer au supplice" that effectively becomes a dialogue in which the two pairs sing in opposition alternating recitative and air delivery styles.