Radio Choir Prague, Radio Children Choir Prague, Choir of State Philharmony of Lithuania, Karl Lövaas, Violetta Madjarova, Sergey Larinas, Gunther Emmerlich, Mikis Theodorakis, Herbert Kegel, Dresdner Philharmonie, [choir]Radio Choir Prague, [choir]Radio Children Choir Prague, [choir]Choir of State Philharmony of Lithuania