The group's nickname stands for Film-Opera-Koncert. They started in 1934, but it wasn't until 1952 that they became the official city orchestra. In the 1930s they did music for many Czech films, although they don't do much opera and film anymore. The ensemble tours extensively, and has a large back catalog of recordings. Programs tend to be quite diverse, from Beethoven to Bruckner. They also offer public rehearsals for a mere 100 Kč.