May 24, 2021 10 songs, 32 minutes ℗ 2021 St Petersburg Chamber Choir
- Sofia Boy's Choir, Nikolai Stanchev, Mihail Milkov, Miglena Spassova, Ivan Ivanovich Petrov, Sofia Orthodox Ensemble, Miroslav Popsavov, Moscow Rybin Choir, Vladimir Makarov, Dimiter Dimitrov, Yoan Kukuzel-Angeloglassniyat Ensemble, Georgi Robev, Bulgarian National Choir & Vassilka Naidenova
- Moscow Patriarchal Choir & Ilya Tolkachev
- Bulgarian National Choir "Svetoslav Obretenov" & Georgi Robev