Siegfried is an opera by Wagner. His most famous interpretations are Luisi Fabio 7 times and Nagano Kent 5 times. This work is often performed at The Metropolitan Opera or Wiener Staatsoper. It is the central opera of Wagner's tetralogy, or Ring (the Ring of the Nibelungen).

The composer once again explores German legends and stages the archetypal figure of the Germanic hero. The protagonist of this opera represents an idealized vision of man, in his confrontation with the gods. His victory over Wotan, a tired and fallen divinity, announces the "twilight of the gods", which Wagner will address in the last opera of his tetralogy.

Here we find the composer's dear leitmotifs, his almost magical use of musical details and his talent for recreating the atmosphere of mythological times while characterizing his characters.

The plot takes place after Sieglinde, in The Valkyrie, has given birth to a son destined to become a great Germanic hero. For having protected the mother and child, Brunnhilde, daughter of Wotan, has been stripped of her divinity and plunged into a deep sleep watched over by a circle of fire.

It is then that the hero Siegfried, who is none other than Sieglinde's child, can appear to save her.