The composer passed away on Sunday (06Nov16). A cause of death has not been revealed, but Kocsis underwent heart surgery in 2012, according to Billboard.

Last month (Oct16), Kocsis cancelled most of his performances at the due to poor health.

Kocsis began studying music at five-years-old and in 1970, he won the Hungarian Radio Beethoven Competition. He travelled to the U.S. the following year for his first concert tour.

The conductor went on to work with several orchestras, including the Berlin Philharmonic, Chicago Symphony Orchestra, the San Francisco Symphony Orchestra, and the New York Philharmonic.

Throughout his career, Kocsis was awarded various accolades, including the Liszt Prize in 1973, the Kossuth Prize in 1978, and The Gramophone Instrumental Award in 1990.

He also co-founded the Budapest Festival Orchestra in 1983.