Complex sentence: From 1962 to 1964 Košler was appointed to the Ostrava opera house, where he worked with foreign ensembles and opera houses, conducted Richard Strauss's opera Salome at the Vienna State Opera, performed the complete cycle of Dvořák's symphonies with the Vienna Symphony.
Split into simpler sentences: From 1962 to 1964 Košler was appointed to the Ostrava opera house. He worked also with foreign ensembles and opera houses, conducted Richard Strauss's opera Salome at the Vienna State Opera, performed the complete cycle of Dvořák's symphonies with the Vienna Symphony.