One of the most influencial violist in Russia/USSR in the first two decades of the 20th century. Emigrated to the USA in 1927 and became a prominent figure at the Great Lakes musical community. Composed nomerous viola works and pedagogical materials. One of the most influencial violist in Russia/USSR in the first two decades of the 20th century. Emigrated to the USA in 1927 and became a prominent figure at the Great Lakes musical community. Composed nomerous viola works and pedagogical materials.