Valery Gergiev has canceled the August 13, 2019 performance of Wagner’s “Tannhäuser” at the Bayreuth Festival.

The festival announced that due to a family bereavement, Gergiev would not be able to conduct the opera. Gergiev was booed during the opening night of the festival and has received mixed reviews for his conducting of the work.

As a result, Christian Thielemann will lead the musical direction of the opera.

Gergiev is still set to conduct Verdi’s “Simon Boccanegra” on August 15 at the Salzburg Festival with a cast that includes Luca Salsi, Marina Rebeka, René Pape, and Charles Castronovo.

The new production is set to be directed by Andreas Kriegenburg. He is also still scheduled for performances of “Tannhäuser” on August 17, 21 and 25, 2019.

Thielemann is currently conducting “Lohengrin” and “Tristan und Isolde” at the Bayreuth Festival.