Lyniv, 43, from Ukraine, opened the festival dedicated to the works of Richard Wagner by conducting a new production of “The Flying Dutchman” directed by Dmitri Tcherniakov.

Merkel, a longtime Wagner fan, attended the premiere dressed in an orange jacket and a floor-length black skirt, along with her husband Joachim Sauer.

Asked last week how she felt about her appearance at the festival, Lyniv told the Berliner Zeitung newspaper: “A score by Richard Wagner is a major professional challenge for any conductor. Gender is irrelevant.”

But she also said she was grateful for the set-up of the Bayreuth theatre, which famously covers the orchestra with a hood to conceal it from the audience.

“It won’t be about what I’m wearing, how I’m conducting. It will just be about whether it’s working or not, about the sound alone,” she told the Süddeutsche Zeitung.

After being cancelled last year due to Covid-19, the festival will play out in front of a smaller audience than usual, with only 911 people attending the opening performance.

Audience members must be fully vaccinated or able to show a recent negative test result, and all must wear FFP2 masks.

The famous Bayreuth festival chorus will also feature only in the form of recordings.

The city of Bayreuth announced last week that Merkel, who is due to bow out of politics later this year after 16 years as chancellor, will be attending the premiere.

Wagner’s musical and artistic legacy from the 19th century is infused with anti-Semitism, misogyny and proto-Nazi ideas of racial purity.

His grandiose, nationalistic works were later embraced by the Third Reich, and Adolf Hitler called him his favourite composer.

Nevertheless, in purely musical terms, Wagner’s achievements are undeniable and his operas figure in the standard repertoire of houses around the world.