Leonid Kogan (violin) and Nina Kogan (piano). The Violin Sonata No. 8 in G major, Op. 30, No. 3, by Ludwig van Beethoven. The Violin Sonata No. 9 in A major, Op. 47, by Ludwig van Beethoven ( It is commonly known as the Kreutzer Sonata (German: Kreutzer-Sonate)).
