Preludium na valašskou píseň (Prelude on a Wallachian Song)

Not having a Czech organ I used the organ at Friesach which is 360km south of where Novák was born.
https://www.piotrgrabowski.pl/friesach.html

Vítězslav Novák (5 December 1870 – 18 July 1949) was a Czech composer and pedagogue. Stylistically, he was part of the neoromantic tradition, and his music has been occasionally considered an early example of Czech modernism.
Novák (baptized Viktor Novák) was born in Kamenice nad Lipou, a small town in Southern Bohemia. After the death of his father the family moved to Jindřichův Hradec, a larger town where an elementary school is now named after him. In his late teens he moved to Prague to study at Prague Conservatory, changing his name to Vítězslav to identify more closely with his Czech identity, as many of his generation had already done. At the conservatory he studied piano and attended Antonín Dvořák's masterclasses in composition where his fellow students included Josef Suk, Oskar Nedbal, and Rudolf Karel.

Beginning in the late 1890s, Novák began to explore influences beyond the prevailing Wagner/Brahms aesthetic of his contemporaries in Prague. Among these were folk influences from Moravia and Slovakia, which at that time were considered culturally backward in the cosmopolitan Czech capital. He also developed an interest in what would come to be called musical Impressionism, although in later life he denied any exposure to the music of Debussy at this time, claiming instead to have arrived at similar techniques on his own. These included forays into bitonality and non-functional, parallel harmony. Finally, after the Prague premiere of Salome in 1906, Novák formed an attachment to the music of Richard Strauss that would remain for the rest of his career.