Presume 1st edition. Original green printed paper wrappers, 12mo, 8 pages. In Yiddish with some Russian publication information on cover. Title translates as, "Rules for the Jewish Musical Literary Society HaZomir [The Nightingale] in Warsaw." We presume this to be the Hazomir Chorus organized by Y.L. Peretz: “Warsaw’s Jewish writers and poets in the early 1900s—most notably Y. L. Peretz—took a strong interest in folk song and in folk choruses. Peretz organized a Hazomir chorus in Warsaw: Matisyohu Bensman (1871–1922) served as its first conductor, and Leo Liow (1878–1962), a synagogue choir conductor in Vilna and Bucharest and choral director of the famed Tlomackie Synagogue in Warsaw, took over the group in 1908. Under Liow’s guidance, the group became the most prominent Jewish secular chorus in Eastern Europe. Its mark of distinction, one that made it a key part of Warsaw’s Yiddish cultural renaissance, was its devotion to performing Yiddish folk songs in sophisticated arrangements by Liow himself—over the objections of those in the group who were proponents of Hebrew” (YIVO Encyclopedia). No copies on OCLC. We could find no copies of this booklet anywhere, including YIVO, Harvard, NLI, & KVK. Perhaps a unique surviving copy from an important Jewish musical and cultural organization. Very Good Condition (M-YID-43-29)