Jezusa ukrytego

Last Sunday I went to St Joseph's church here in Vilnius to help my friend Paulius Grigonis at the Mass. The Polish choir sang the famous Jezusa ukrytego hymn during Communion and I added some improvisations in the accompaniment. I tested out Velesovo sample by Sonus Paradisi and Hauptwerk VPO software on Johannus Studio 150 organ. Let me know what do you think!