Adelina Maria Cociobanu, mezzo-soprano, (Romania)
Aida Pascu, soprano, (Romania)
Arianna Cimolin, soprano, (Italy)
Bozhidar Bozhkilov, bass, (Bulgaria)
Dayana Firoozi, soprano (Bulgaria)
Dimitrina Kechedzhieva, soprano, (Bulgaria)
Donghyun Kim, tenor, (South Korea)
Eunchan Lee, tenor, (South Korea)
Hae Kang, bariton, (South Korea)
Ioannis Lazopoulos, bariton, (Ukraine)
Rumyana Kostova, soprano, (Bulgaria)
Te Hu, contraalt, (China)
Viktor Krastanov, bass, (Bulgaria)
Virineia Pîrnău, soprano, (Moldova)
Wonjun Jo, baritone, (South Korea)