The melody begins with elegant piano, and then the high and incredibly strong female voice enters that sounds categorically in the foreground. However, no words – only solid voice rifts that cannot be imagined, for example, in contemporary art. This genre of performance has a special name – romance. It blows with cold, winter, sadness and despair from the execution. Almost all the romances have just such a cool sound. They are good for sympathetic nodding with head as if agree.
Reference: Clara Rockmore & Nadia Reisenberg - TuneFind
18 Morceaux, Op. 72: No. 2. Berceuse lyrics - Nadia Reisenberg And Clara Rockmore