Achron (Akhron), Joseph (Iosif Yul'yevich) (5–1–1886, Lodz; 4–29–1943, Hollywood). Violinist and comp. Brother of I. Achron. Studied vn in Warsaw with his father and Michalowicz, and at the P. Cons., where he grad. 1904 as a pupil of Auer. Also studied theory with A. K. Lyadov and orchestration with M. Shteinberg . With Gnesin, A. Krein , M. Milner, and Rozovsky founded the Soc. of Jewish Folk Music in P. (1911); also directed masterclasses in vn and ch. mus. at the Kharkov Cons. (1913–16) and…