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