15 Взбранной воеводѣ.
Греческаго роспѣва. Vzbrannoy voyevode.
Grecheskago rospeva. To Thee, Victorious Leader.
Greek Chant.
First take a look at the text and the music - specially the first soprano notes. The soprano is singing up in the high scale the whole number - and remember that this is numer 15 the last of the all night virgil. This is so beautifully song by the russion choir.
And then listen too the live performance of Vox Academica in Kristkirkja and take notice to the first soprano - and how the choir comes strong in at the end. I love Rachmaninoffs music -