[1][2][3] He composed music for productions by many of the leading figures of the Polish Yiddish Theatre of the interwar and postwar period, including Shimon Dzigan and Israel Shumacher, Moishe Broderzon, and Ida Kamińska.
[1][2] One of his earliest musical instructors was his own father, and after briefly studying the violin he was sent in 1916 to a local piano teacher in Grodno named Lilia Fidelman.
[1] Shaul's older brother Lyolye also became a pianist, studying at the Leipzig Conservatory and later becoming an instructor in Greece and then Israel.
[2] After finishing his schooling, he relocated to Białystok, where he began to work as a Yiddish theatre accompanist, directed the orchestra at the Apollo, and had a jazz band in the military.
[9][1][10] The troupe managed to stage two full shows in 1940: Zingendik un tantsndik (Singing and Dancing) and Rozhinkes mit mandlen (Raisins and Almonds).
[1] After World War II, many Polish Jews were repatriated from the Soviet Union to Poland, and after a brief time in Krawkow, Berezovsky and his wife settled in Łódź.
[2][1] Dzigan and Shumacher were also permitted to leave the Soviet Union and they returned to Poland and began to collaborate with Berezovsky again.