They gave a concert featuring two sonatas for violin and piano by the incomparable Beethoven. They began with a performance of Beethoven’s Sonata for Violin and Piano No. 8 in G Major, Op. 30, No. 3, a work whose sense of classic formalism is lightened with joyful enthusiasm. They continued their program with Beethoven’s celebrated Sonata for Violin and Piano No. 9 in A Major, Op. 47, known as the “Kreutzer Sonata.”