The Slovak Radio Symphony Orchestra (SOSR) was established in 1929 as the orchestra of the Bratislava-based branch of the Radiojournal radio institution, being the first professional symphony orchestra in Slovakia. The Czech conductor František Dyk was then appointed to be the first chief conductor of the Orchestra. The beginnings of SOSR are connected with the intense activity of Alexander Moyzes, the head of radio music broadcasting at that time, who contributed to the gradual improvement and enlargement of the Orchestra. Over the years the Orchestra was led by Kornel Schimpl, František Babušek, Krešimir Baranović, Ľudovít Rajter, Richard Týnský, Ladislav Slovák, Václav Jiráček, Bystrík Režucha, Otakar Trhlík, Ondrej Lenárd, Róbert Stankovský, Charles Olivieri-Munroe, Oliver Dohnányi, Mario Košik and Peter Valentovič. Ondrej Lenárd was reappointed chief conductor of the Orchestra in the 2019/2020 season.