I have many recordings of the Sixth Symphony. I discovered Valery Gergiev’s recording recently. At first I felt it was nothing special, but then later I recognised its power, drive and emotion. Valery and I have worked together on Boris Godunov in Salzburg and New York, and were always looking for common projects. He’s a very strong personality. You will not always agree with him that’s usual with any performing artist but he can convince you. You feel he has a lot of energy in him, and sometimes a very dark energy, but for the music that’s good.