- Youth Сhoir «Yapurai» (Kyzylorda, Republic of Kazakhstan), artistic director – Saule Kuzdybaeva
- Choir of Students of the Specialty «Choral conducting» of the Krasnodar College of Music named after N. A. Rimsky-Korsakov (Krasnodar, Russia), artistic director – Yury Bogatyrev
- Youth choir «Contrast» of Nizhny Novgorod Provincial College (Nizhny Novgorod, Russia), artistic director – Olga Podolskaya
- Children’s choir «Lesnye golosa» (Lesnoy gorodok, Odintsovskiy district, Moscow region, Russia), artistic director – Maria Lukonina
- Choir of the High Classes «Harmony» of the Children’s Music School (Lesnoy, Sverdlovsk region, Russia), artistic director – Tatiana Karepina
- Choir of Boys and Young Men «CANTUS» of the Children’s Music School named after J. Haydn (Moscow, Russia), artistic director – Alexandra Samokhvalova
- Choir «Ventus» (Samara, Russia), artistic director – Svetlana Erastova
- Concert Choir «Fantasia» of Music and Choral School «Fantasy» Lyceum No.51 (Tomsk, Russia), artistic director – Natalia Bogdanova
- Youth choir of the Municipal choir of boys and young men «Vivat» (Petrozavodsk, Republic of Karelia, Russia), artistic director — Anastasia Popova
- Youth choir «Permoník» (Karviná, Czech Republic), artistic directors – Martina Juríková and Karina Grimová
- Youth choir «Polyhymnia» of Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia), artistic director –Igor Soloviev
- Senior Concert Choir «Laulu» of the Children’s Music and Choir School of Petrozavodsk (Petrozavodsk, Republic of Karelia, Russia), artistic director – Svetlana Arkhipova
- Choir «Contrasts» of the St. Petersburg Children’s Art School named after A. P. Borodin (St. Petersburg, Russia), artistic director – Oksana Zakharyan
- Riga State Gymnasium No.2 Girls’ Choir (Riga, Latvia), artistic director – Ilona Plume
- Children’s Choir «Perezvony» of the St. Petersburg Children’s Art School named after M. I. Glinka (St. Petersburg, Russia), artistic director – Larisa Yarutskaya
- Choir «Klavishy» of Children’s Art School of Music No.13 (Minsk, Republic of Belarus), artistic director – Alyona Grozova
- Children’s choir «Raduga» of the St. Petersburg Сhildren’s Аrt School No.3 (St. Petersburg, Russia), artistic director – Irina Batyrova
- Student’s Choir «Canzona» of the St. Petersburg Music Pedagogical School (St. Petersburg, Russia), аrtistic director – Julia Davydova
- Senior Choir of the «Iskra» Children’s Choral Studio of the Palace of Children’s and Youth Creativity of the Krasnogvardeysky District of St. Petersburg «On Lenskaya» (St. Petersburg, Russia), artistic director – Vladimir Komarov
- Concert Сhoir of the Vocal and Choral Studio «Voice» of the House of Children’s Creativity of Krasnoselsky district of St. Petersburg (St. Petersburg, Russia), artistic director – Lyudmila Alexandrova