Ada Holtzman has begun a wonderful webpage dedicated to Jewish musicians from Poland before World War II.
Ada Holtzman has created a wonderful table of contents to the Isaachar Fater book (in Yiddish, Polish and Hebrew) “Jewish Musicians in Poland between the Two World Wars”. There’s a biography of Fater and several musicians taken from the book. She’s translating chapters from the Hebrew version to English. The book was originally written in Yiddish.