Riccardo Chailly has canceled his upcoming performances at the Lucerne Festival.

The company said that Chailly was taken ill and had to undergo a sudden operation. As a result, Paavo Järvi and Andrés Orozco-Estrada will take over.

Järvi will conduct the Festival’s Opening Concert on August 11 as well as the concert on August 12, and Orozco-Estrada will lead the concert on August 16.

Orozco-Estrada will conduct a concert that features Hector Berlioz’s “Symphonie Fantastique” instead of Sergei Rachmaninoff’s First Symphony in D minor. In the first half, as previously announced, Rachmaninoff’s “Rhapsody on a Theme of Paganini,” Op. 43, will be performed, with Beatrice Rana as the soloist.

Meanwhile, Järvi will conduct Mahler’s Symphony No. 3 with Wiebke Lehmkuhl as soloist.