On Wikipedia https://en.wikipedia.org/wiki/Zurich_Chamber_Orchestra
Alternative Spellings Zürcher Kammerorchester, ZKO
Creation 1945
Participants Muhai Tang - Conductor from 2006 to 2011
Roger Norrington - Conductor from 2011 to 2016
Daniel Hope - Conductor from 2016
Edmond de Stoutz - Conductor from 1945 to 1996
Howard Griffiths - Conductor from 1996 to 2006
City Zürich, Switzerland
Country Switzerland

The Zurich Chamber Orchestra (Zürcher Kammerorchester; ZKO, German abbreviation) is a Swiss chamber orchestra based in Zurich. The ZKO's principal concert venue in Zurich is the Tonhalle. The ZKO also performs in Zurich at the Schauspielhaus Zürich, the ZKO-Haus in the Seefeld quarter of the city, and such churches as the Fraumünster and the Kirche St. Peter. The ZKO presents approximately 40 performances in Zurich each year, in addition to approximately 40 children's concerts and performances elsewhere in Switzerland and abroad. In the 2016-2017, season the total number of concerts was151, a record for the ZKO. wikipedia