From 1960 to 1966, he worked as a resident stage director at the Zurich Opera.

It has been the home of the Zurich Opera since 1891.

Since 2003 Niziol has been concertmaster of the Zurich Opera.

Living with relatives and working at the Zurich Opera for more than six years, he rose from an internship to the rank of assistant conductor.

He also sang in a few productions with Zurich Opera in 1917.

His father, who is retired, was a tenor at the Zurich Opera.

She later enjoyed international success in the 1960s and 1970s, and had a particularly lengthy career singing with the Zurich Opera.

He appeared at the Zurich Opera from 1940 until 1952, where he undertook some 80 roles.

The first was in 1979, a version directed by Harnoncourt with the Zurich Opera and chorus.

He takes up a similar post next season at the Zurich Opera, having conducted only 12 operas (at prestigious houses, to be sure).