In the song i use this it is played over an e-minor. The scale is either harmonic minor on b or h. M. 5 on f#. Sorry, i forgot which one it was exactly.
Antonín Dvořák - Concerto for Violoncello and Orchestra in B minor, op. 104 - 2. Adagio ma non troppo (Pierre Fournier, George Szell, Berliner Philharmoniker, 1962)
Author: Pierre Fournier, George Szell, Berliner Philharmoniker