“The first concepts of singing,” “A Practical body organ tutor,” and “The prinicples of harmony” are pedagogical functions compiled by this respectable Polish organist and composer. He researched with Schneider, Lenz, Pohlenz, and Elsner. Freyer performed the dual bass in the theater in Warsaw until he been successful Einert as the organist in the Evangelical Chapel. After getting the body organ rebuilt and providing several concerts — organizing some aswell — Freyer helped to help make the church among Warsaw’s main musical centers. Shows had been among his forte and he frequented Warsaw, Krakow and Paris lauded and valued by such eminent composers as Mendelssohn, Spohr, Hesse and Glonka. As instructor of the body organ in the Warsaw Institute of Music Freyer informed many essential Polish musicians such as for example Moniuszko. His compositions could be divided into items for the virtuoso, the pupil, and accompaniment. Feature of his compositions had been homophonic and polyphonic stability and a qualitative execution from the organ’s stops.