The IPO Richter String Quartet [Ilya Konovalov, Shmuel Glaser (violin) Dmitry Ratush (viola) Felix Nemirovsky (cello)]
The IPO Richter String Quartet [Ilya Konovalov, Shmuel Glaser (violin) Dmitry Ratush, Vladislav Ratush (viola) Felix Nemirovsky, Kirill Mihansovsky (cello)]