The City of Prague Philharmonic Orchestra (Czech: Filharmonici města Prahy) is a classical orchestra, predominantly composed of Czech classical, jazz and guest musicians. 　　The history of the orchestra goes back to the Film Symphony Orchestra (FISYO), which was founded shortly after World War II, in 1947 as the in-house orchestra for the huge Barrandov Film Studios. After separating and fully privatized it initially performed under the name Czech Symphony Orchestra, but had problems with unauthorized use of the name by other Czech ensembles for themselves. Finally in 1992, after the Velvet Revolution, music producer James Fitzpatrick came up with its current name. 　　The orchestra is drawn from musicians of the State Opera and the Czech National Theatre, and most of its concerts take place at the opera house.