- Roy Theaker, Bulgarian National Radio Symphony Orchestra, Georgi Dimitrov
- Angel Stankov, Gheorghi Stoyanov, Christo Pavlov, Tania Kazandjieva-Chauche, Ludmil Nentchev, Yossif Radionov, Roumen Kroumov, Nadja Dimitrov, Rossen Idealov, Kostadin Yotsov, Maria Palieva, Alexandra Docheva, Mila Pavlova, Stoyan Pavlov, Kalina Krusteva
