"Siegfried" is an opera by composer Richard Wagner, part of his larger cycle called Der Ring des Nibelungen. It tells the story of a young hero, Siegfried, who is fearless and seeks to forge his own destiny. He is known for slaying a dragon and obtaining a magical ring that grants power but also brings misfortune. The opera explores themes of heroism, love, and betrayal. Siegfried's journey is marked by encounters with various characters, including the Valkyrie Brünnhilde, who plays a crucial role in his fate. The music is rich and dramatic, showcasing Wagner's innovative use of orchestration and leitmotifs.