Quartet named after. Borodin: Mikhail Kopelman (1st violin), Andrey Abramenkov (2nd violin), Dmitry Shebalin (viola), Valentin Berlinsky (cello). Quartet named after Prokofiev: Ella Braker (1st violin), Nadezhda Baykova (2nd violin), Galina Odinets (viola), Kira Tsvetkova (cello).