If already, then already: Original sound doyen Philippe Herreweghe not only had his orchestra sound historic in the Musikverein on Monday, but also had a pianist with a corresponding passion at his side. Kristian Bezuidenhout was not working on a black, modern Steinway colossus, but on a replica piano from Beethoven’s era. Rich chord thunder and juicy pedal effects are of course impossible on such a fortepiano. Instead, he produced a sound of sober dryness with a slightly metallic harpsichord note. Not for everyone.