Patrick Demenga
(cello)
Benjamin Heim
(cello)
Tytus Miecznikowski
(cello)
Patricia Kopachinskaya
(violin)
Andreas Engler
(violin)
Alexander Schütz
(violinmaker)
Manuel Lardi
(violinmaker)
Esther Bornand
(violinmaker)
Igor Moroder
(violinmaker)
Pasquier & Scheurenberg
(violinmaker)