Traditional Christmas concerts will take place in St. Nicholas Church. The program will feature Jakub Jan Ryba's Czech Christmas Mass "Hey, Master!", one of the most famous works of Czech musical tradition. programme Hymn — Adeste fideles Jakub Jan Ryba (1765—1815) — Rozmilý slavíčku, (Charming Nightingale), Czech Christmas Pastoral; Česká mše vánoční (Czech Christmas Mass) Czech Christmas Carol — Narodil se Kristus Pán (Christ Our Lord is Born) performers Jitka Rosypalová soprano Veronika Fučíková Mráčková alto Jan Novenko tenor Jan Morávek bas Jan Kalfus positive organ Gaudium Praha sbor Piccolo coro & Piccola orchestra Marek Valášek conductor More