“Philomela” female choir (Finland, Helsinki), artistic director – Marjukka Riihimäki
Vocal and choral studio “Funny notes” of Children and Youth Creative Center “Vasilevsky island” (St. Petersburg, Russia), artistic director – Olga Kheruvimova
“Dangi&Dangiukai” pop singing group (Kaunas, Lithuania), artistic director – Danguolė Beinarytė
Musical theatre “Rucheek” of lyceum № 1828 «Saburovo» (Moscow, Russia), artistic director – Lyudmila Peryshkina
MGIMO Chorus “Proxenos” (Moscow, Russia), artistic director – Anton Tokovinin
Women’s choir of Krasnoturyinsk college of Art (Krasnoturyinsk, Russia), artistic director – Svetlana Yakimova
Youth choir “Victoria” (Apatity, Murmansk region, Russia), artistic director – Victoria Filin
Concert choir “Perezvony” of Children’s Art School named after M.I. Glinka (St. Petersburg, Russia), artistic director – Larisa Jarutskaya
Choir “Kapelki” of Song and dance ensemble named after I.O. Dunaevskiy (St. Petersburg, Russia), artistic director – Tatiana Kholodilo
Concert choir of Song and dance ensemble named after I.O. Dunaevskiy (St. Petersburg, Russia), artistic director – Ilya Malafei
“Magic flute” сhildren’s choir of Сhildren’s music school № 1 named after S.V. Rakhmaninov (Simferopol, Russia), artistic director – Olga Kaminskaya
Men’s ensemble “Moscoff” (Moscow, Russia), artistic director – Ekaterina Zaboronok
Academic choir “Moderato” (Moscow, Russia), artistic director – Ekaterina Zaboronok
Academic women’s chorus “Natali” of House of Culture “Zheleznodorozhnik” (Mezhdurechensk, Kemerovo region, Russia), artistic director – Natalia Yurtsevich