The leading organ personality of the newly established Czechoslovakia was Bedřich Antonín Wiedermann (1883-1951). He was a virtuoso with a rich concert activity, unlike other organists he was an active composer (for 340 songs), but he also taught. Pedagogically he worked at the Prague Conservatoire, where he joined in 1917 and where he raised a number of pupils, later leading organists. Through his performances as well as in teaching, he promoted the organ as a concert instrument. The article compares Wiedermann's pedagogical work with other organ organists of that time and evaluates its significance in this area.