Vocal Ensemble «Heavenly Swallows» of the Children’s Art School N 1 named after M.P. Mussorgsky (Tver, Russia), artistic director – Anna Ishieva
Vocal Ensemble «Heavenly Swallows» of the Children’s Art School N 1 named after M.P. Mussorgsky (Tver, Russia), artistic director – Anna Ishieva