Dmitri Bortniansky (1751-1825)
Dmitri Bortniansky was a Ukrainian-Russian composer. He studied music in Italy. He worked as the Kapellmeister (Chapel master) at the court of St. Petersburg.
Bortniansky wrote operas, cantatas, instrumental music, Russian sacred music, and Russian secular music. His Russian sacred music is known for its Italian style lyricism and counterpoint.
Here is a recording of Bortniansky’s Cherubic Hymn which is often sung in the Ukrainian orthodox church. I do not know who is performing the hymn in this particular recording. It is quite a beautiful hymn. Have a listen.