Reconstruction by the author based on a drawing by Henri Arnaut de Zwolle around 1440, Bibliothèque nationale de France, Paris
The oldest secondary image source: manuscript from 1469, Bibliothèque nationale de France, MS fr 331, f 145v Click to enlarge
Reconstruction by the author on the oldest surviving stringed keyboard instrument - still in progress:
Klaviziterium after a historical photograph from 1888 Royal College of Music London
Claviorganum with switching function between felted hammers and tangents as well as organ work. This instrument was acquired from the author and transferred to the Historisches Museum in Basel in its unchanged condition.
Detail: Soundboard, bridge and pinblock
Clavichord after Johann Heinrich Silbermann for the factory museum of the Wilhelm Schimmel company in Braunschweig 1984
Grand piano after Johann Heinrich Silbermann for the museum of the Wilhelm Schimmel company in Braunschweig 1984.
Grand piano by Johann Heinrich Silbermann, Strasbourg 1765, Museum of Musical Instruments, Berlin