Bogoslovsky

Matthias Schriefl, Simon Rummel

Veronica Ignatovich, Eddie Rosner, Eddie Rosner Jazz Orchestra, Arnold Golberger, Albert Harris, Zoya Larchenko, Georgy Vinogradov, Louis Markovic, Ruth Kaminskaya, Georgy Abramov, Yuri Saulsky, Pavel Hoffman, Louie Markovich, Yuri Tseytlin, Tamara Kravtsova, Lyudmila Gurchenko, Nina Dorda, Vocal Quartet "Ulybka", Albert Bayadzhan, Yuri Blagov, Boris Matveyev

Arkady Shilkloper (horn), Vadim Neselovskyi (piano)

Stefan Elenkov (soprano), Stevka Evstatieva, Orthodox Vocal Ensemble, Vladimir Bogatschow, Galia Pavlova (contralto), Krasimira Lazarova (soprano), Nicola Ghiuselev (bassguitar), Bulgarian National Choir, Sabin Markov, Margarete Babinsky, Nicolai Ghiaurov (bassguitar), Swetlana Jurasova (soprano), Julia Hamari (mezzo-soprano), Sofia National Opera Orchestra, Sofia Orthodox Ensemble, Radiosinfonieorchester Berlin, Stanislaw Sulejmanow (bassguitar), Bela Banfalvi (violin), Jelena Zaremba (mezzo-soprano), Jenö Jandó (piano), Anatolji Kotscherga (bassguitar), Moscow Rybin Choir, Russisches Rundfunkorchester, Plovdiv Philharmonic Orchestra, Bulgarian Radio Symphony Orchestra, Berlin Radio Symphony Orchestra, Kölner Rundfunkorchester, RIAS Kammerchor, Rundfunk-Orchester Berlin, Sofia Symphony Orchestra, Rundfunkorchester Sofia, Radio-Sinfonieorchester Stuttgart des SWR, Sofia National Opera Chorus, Radio Symphony Orchestra Budapest, Academy of St Martin in the Fields, Kölner Rundfunkchor, Kölner Rundfunk-Sinfonie-Orchester, Budapest Strings, Chorus of the Polish National Opera, Orchestra of the Polish National Opera, Rouslan Raichev, Leonid Grin, Michail Jurowski, Vassil Stefanov, Sir Neville Marriner, Atanas Margaritov, Gilbert Levine, Robert Satanowski