Older and wiser. I had not even one recording from Christian Tetzlaff until I recorded a Wigmore Hall recital that took place a few days ago with Tetzlaff and Leif Ove Andsnes. Quite outstanding and, given the presence of the entirely admirable Andsnes, a true duo recital. They played Beethoven's Op 30 No.1, Mozart's K 306, Grieg's third sonata, and the Shostakovich sonata. An excellent recital with both artists firing on all cylinders.
It is interesting that Tetzlaff's nice sounds came from a three-year old German violin; he apparently believes that modern instruments are fully equal to most older ones, and puts his beliefs into practice. Convincingly.