The works of E. Pepping, a representative German composer of church music, introduced the baroque music style and composition technique that emerged after the organ reform movement(Orgelbewegung) in the 20th century, and used the Lutheran chorale, which was a valuable resource for baroque organ work, as a material for organ works. Through comparative analysis of Pepping' s representative collection of organ chorales, Grosses Orgelbuch, which is the research subject of this thesis, with the works of baroque composers including Bach, It is proved that it is a neo-classical product that well integrates baroque elements into his 20th century works. Using choral-related organ genres that have appeared in various ways since the early Baroque era, Pepping composed Cantus Firmus Chorale, Choral Fantasia, Choral Fugue, Choral Canon, Ornamented Choral, and Choral Passacaglia, etc., and these works were all composed for liturgical purposes, just like Bach' s Chorale Collection. It is sufficiently proved in numerous choral canons and choral fugues that Pepping is a master of counterpoint.
In addition, by introducing the word painting technique that Bach enjoyed using in his work, the emotional expression shown in the text is expressed through various techniques. It is expressed through various techniques encompassing the simple diatonicism based on the functional harmony through the free chromaticism of the neo-classicism. In addition, the tone he used did not use key signatures like the composer at that time, but in his work, tonal or modal center was always felt, and tonality and modality were mixed, and The modal interchange, the result of the mode change that occurred while the tonality center is maintained is frequent. It can be seen that the exchange (modal interchange) of occurs frequently. In addition, the vitality and variety of rhythms in Pepping' s music add great power and dynamics to the songs, and various techniques frequently used in baroque music and music of earlier times can be seen in his works. And the instructions for registration in Pepping' s works are notational scores. It can be seen that it is not specifically marked in the text, but is minimally presented, and is left to the imagination and music of the performer.
Pepping is a representative composer of neoclassicism who led Protestant church music in Germany. He breathed new life into the organ choral and expressed the elements of neoclassical music in the most comprehensive way. As a result, he proves through his works that the traditional styles and techniques of baroque and earlier music can be harmonized with 20th century music elements.