For their third volume of Mozart sonatas, Ibragimova and Tiberghien have chosen two from the time when he was a child prodigy on the violin, and four from his maturity as the great piano virtuoso of his day. They don’t patronise the 10-year-old’s works—the allegro of No 16 (B flat major) sparkles in their mercurial hands—but they reserve their finest playing for No 23 (D major) and Mozart’s last sonata for this combination in F, No 36.