Complex sentence: He was chosen to conduct the "Jahrhundertring", the performance of Wagner's "Ring" cycle for the centenary of the Bayreuth Festival, and conducted the work of his contemporaries such as Elliott Carter and György Ligeti.
Split into simpler sentences: He was chosen to conduct the "Jahrhundertring", the performance of Wagner's "Ring" cycle for the centenary of the Bayreuth Festival. He conducted the work of his contemporaries such as Elliott Carter and György Ligeti.