Bulgarian National Svetoslav Obretenov Choir, Sofia Chamber Orchestra, Yoan Kukuzel-Angeloglassniyat Ensemble, Sofia Radio Choir, Georgi Robev, Mihail Milkov, Ivan Petrov, Miroslav Popsavov, Dimiter Dimitrov, Moscow Rybin Choir, Nikolai Stanchev, Stanka Markova, Daniela Soicheva
