9 Sacred Pieces, No 1 Cherubic Hymn 1

On Youtube I heard this music "Pyotr Ilyich Tchaikovsky - Hymn of the Cherubim", sung by The USSR Ministry Of Culture Chamber Choir, and "Tchaikovsky 9 Sacred Pieces No. 1 - Cherubic Hymn 1" by St. Peterburg Chamber Choir
Choirmaster Nikolai Korniev
Recorded in the Cathedral of St. Peter and Paul, St. Petersburg, 1995

I decided to arrange some music on organ. Here is the first hymn.

I also played it on my Genos with Choir voices as it sounds more like the original music