The Belarusian premiere of a 19th-century work took place in the concert hall of St. Sophia Cathedral in Polotsk

The celebration of choral art took place on June 2nd as part of the International Choral Assembly "To the Sources of Rus'". In addition to the competitive performances of the participants, a highlight of the concert was the premiere of the Solemn Cantata Te Deum laudamus ("We Praise Thee, O God", 1814-1815) by the Russian composer of Belarusian-Polish origin, Józef Kozłowski, written in honor of the victory in the war with Napoleon (it was first performed during the coronation of Nicholas I in 1826).

The majestic two-choir work, accompanied by the organ, was performed by the Orenburg Chamber Choir, the Vitebsk People's Youth Choir, and the vocal group of the "Gloria" choir from St. Petersburg (dir. Tatyana Antonova). The organ part was performed by Nelya Borovik from Polotsk, and the soloists from Orenburg were soprano Ekaterina Shvyrkova and tenor Andrey Timofeev. The conductor was the artistic director of the Orenburg Chamber Choir, Honored Artist of Russia, Professor Olga Serebriyskaya.

The competitive program was presented to the jury, which included prominent figures in choral art from Belarus and Russia, by the exemplary choir "Fest" of Secondary School No. 20 in Minsk; the women's choir "Zhar-Sokol" (Moscow); the chamber choir "Partes" (Obninsk, Kaluga Region, Russia); the Ural Amateur Choir (Yekaterinburg, Russia); and the choir of Chinese students of VSU named after P. Masherov.

All participants of the "To the Sources of Rus'" assembly also sang the "Hymn to Euphrosyne," with music by the artistic director of the youth choir, Alexander Rauzo (lyrics by nun Euphrosyne Rudenko). The conductor was jury member, Vitebsk composer Vitaly Rauzo.