The Beethoven String Quartet:
Dmitri Tsyganov (1st violin), Vasili Shirinsky (2nd violin),
Vadim Borisovsky (viola), Sergei Shirinsky (cello)
Dmitri Tsyganov (1st violin), Nikolai Zabavnikov (2nd violin),
Fedor Druzhinin (viola), Sergei Shirinsky (cello)
Recorded in 1961 (1-4, 10-13), 1965 (5-9)