Contemporary witnesses

As a boy, Avraham Sternklar took piano lessons with Kestenberg.

His parents had not yet been able to set aside very much money, so they arranged a kind of barter with Kestenberg in order to finance their son's piano lessons. - His mother, the artist Tea Sternklar, became the Kestenberg family's tailor.

Sternklar fondly remembers the time with Kestenberg, to which, as he says, he owes his musical foundation.

A photo with Kestenberg's handwritten dedication is the expression of the close connection between teacher and student, which continued even after Sternklar moved to the USA.