In my view, Sviatoslav Richter was one of the three or four greatest pianists of the 20th century, along with Artur Rubinstein and Arturo Benedetti Michelangeli.
On this CD we get to hear Mr. Richter perform the Viola Sonata and the Violin Sonata by Dmitry Shostakovich.
Shostakovich: Violin and Viola Sonatas
Violin Sonata, Op. 134, with Oleg Kagan (violin)
Viola Sonata, Op. 147, with Yuri Bashmet (viola)
Along with Sviatoslav Richter (piano).
Here are Yuri Nashmet and Sviatoslav Richter in the Shostakovich Viola Sonata: