Musicology Annotation << Back «East Prussian Bach» Georg Riedel (1676–1738): Findings of «lost» sources in St. Petersburg Shabalina Tatiana V. The elder contemporary of J. S. Bach, Königsberg composer Georg Riedel belongs to those Baroque masters, whose works are considered almost completely lost. The modern articles contain references only to one his surviving work, the funeral cantata «Harmonische Freude frommer Seelen». However, starting from the research of Hermann Güttler (1925), Riedel is regarded as one of the most signifi cant composers of East Prussia and named as «Ostpreußischer» or «Königsberger Bach». For more than two hundred years his manuscripts and original publications of his works had been kept in Königsberg. But since the World War II almost all these sources have disappeared and to date there is no information about their fate. Fortunately, recent fi ndings at the National Library of Russia have revealed original printed texts for many vocal works by Riedel as well as original publications of his pieces in scores and parts. All of them belong to the oldest repository of the library compiled in the late 18th – early 19th centuries. The article contains analysis of the newly found sources and their signifi cance for our knowledge of the work by the Königsberg master. It is demonstrated that a number of findings radically change the existing knowledge about Riedel’s strict adherence to the old forms of German church music and absolute absence of infl uence of modern trends on his work. At the conclusion the role of Riedel in the history of music is shown in the new light. Keywords: Georg Riedel, Königsberg, «East Prussian Bach», sources, cantatas, National Library of Russia. DOI: 10.25791/musicology.10.2018.203 Contacts: E-mail: jsb3@yandex.ru Pp. 35-43.