Bouzouki and not zither
The mural
The fictional Zorbas plays the zither while the real Zorbas did not know how to play the instrument, but he was really good at playing the bouzouki. Perhaps the writer chose the zither because its sound expresses sorrow in a better way. His grandchildren also inherited his music talent. The unforgettable Paul Sidipropoulos was his great grandson, from his daughter, Tassia.
As seen on
Kazantzakis and the real Zorbas in Mani