I greatly admired Isabelle Faust and Alexander Melnikov in the Beethoven sonatas for piano and violin. I now have to start admiring the new set (first disc just out) featuring Alina Ibragimova and Cédric Tiberghien (Wigmore Hall Live). These live performances from 2009 are in the same class. German and Russian v Russian and French. Maybe the latter gain with their sense of a live performance? Whatever; we are in better days than when the sonatas were played by Heifetz and Emanuel Bay. Anyway, good times for the Beethoven duo sonatas.