Children's choir „Cantus Michaelis“  
Mikkeli, Finland,
Conductor: Кirsi Kaunismaki-Suhonen

"The World Music Foundation" mixed choir 
Bursa, Turkey,
Conductor: Levent Sezgin

„Dragan Shuplevski“ mixed choir 
Scopje, Macedonia,
Conductor: Sasho Tatarchevski

Children's choir „Dunavski valni" 
Russe, Bulgaria,
Conductor: Vesela Todorova 

Children's choir of the Liceum of Art №133  Kharkov, Ukraine,
Conductor: Nina Lagutina

„I. D. Chirescu“ Mixed choir 
Cerna voda, Romania
Conductor: Priest Anghel Dincu

  Children's vocal and teater formation "Talasumche" - Sofia, Bulgaria,

Conductor: Dimitar Kostancaliev

 „Sv. Stefan Kralj Dečanski“ chamber choir Knjazevac, Serbia
Conductor: Martina Milosevic

 „Morfova – Prokopova“ Woman's choir 
Sofia, Bulgaria,
Conductor: Atanaska Popova 

 „N. Tagarades“ Mixed choir 
N. Tagarades, Greece,
Conductor: Elefteria Metaxa

 „Trison“ Mixed choir
Braila, Romania,
Conductors: Marcica & Stefan Lupu

Collegium Cantorum „Nicolae Oancea” Bucharest, Romania,
Conductor: Marius Crucianu

 „Chernomorski zvutsi“ Mixed choir  
Balchik, Bulgaria,
Conductor: Valentina Geogrieva