Nisn Spivak , better known as Nice Balzer ( Yiddish Balzer from Balti  ; at different periods of his life he was also known as Nysa Keshenever , i.e. from Chisinau and Nysa Bardichever , that is from Berdichev ; 1824 , Novaya Mouse) Novogrudok district , Minsk province - 1906 , Sadgora , Austro-Hungarian Empire ) - Jewish cantor and composer of liturgical music, one of the most famous cantors of his time.
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Nisn Spivak was born in the town of Novaya Mouse (in the Jewish tradition “Mush”, now a village in the Baranavichy district of the Brest region of Belarus ). From his childhood he was a chanter at the cantor Zalmen Singer in Uman , then he sang in Teleneshty ( Bessarabia ). After training, he got a place of cantor in another Bessarabian town of Balti (hence the nickname in Yiddish, Balzer - from Balti).
He gained fame as a cantor in Chisinau . In 1877, he received the position of cantor in Berdychiv , which he occupied until the end of his life, and in Chisinau Belzer was replaced by his pupil, another well-known cantor, Pine (Pinhus) Minkowski (1859-1924). He died at the court of the Sadagur zaddik in 1906 .  After the death of Belzer, the cantor of Berdichev became Meer Fisak.
Nisn Belzer is one of the most influential innovators of Jewish liturgical music and cantor art of modern time, the author of numerous liturgical compositions in which he began to pay more attention to the chorus of singers. In addition, he is the founder of the largest Russian cantor school. Among his students are actors Zeylik Mogulesko and Boris Tomashevsky, cantors Pina Minkowski (1859-1924), Isidore Blumenthal (1844-1924), Yosef Shapiro (1894-1936), Menachem Kipnis (1878-1942), Moshe Milner, Yankev Weinman ( 1869—?), A. Kuzovsky, Gershn Yosilevich (died 1928), Mordhe Shapiro, Mordhe-Leib Muchnik (1882—?), Yosef Sternberg (1894—?), Gdalye Groysman, Avrum Berkovich (Kalechnik; 1858-1929) , Mordkhe Radziviller (1865–?), “Conscious Mahl” (cantor Vertujan ), Moishe Knelerman, Ershl (Zvi) Weintraub.
In the work of the German-Israeli musicologist Peter Emmanuel Gradnevitsa ( German , 1910 - 2001 ) “The Music of Israel” ( The Music of Israel , 1949 and 1996 ) stated that the colonist Shmuel Cohen ( 1870 - 1940 ) put the anthem of Israel “Atikwu” to music one of the synagogue compositions of the cantor Nishn Belzer,  which, in turn, was based on a Moldovan folk song.
- Sometimes the occasional spelling of his nickname as Belzer is incorrect. The nickname "Belzer" comes from the name of the city of Balti , traditionally written in Hebrew languages with the letter "z", pronounced, however, as "t": Balti .
- suburban place of Sadagora is now Chernivtsi district
- Israel National Anthem - Hatikvah