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