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