Mieczysław Weinberg was a Polish composer, from 1939 resident in USSR. Ever since a revival concert series in the 2010 Bregenz Festival in Austria, his music has been increasingly described as "some of the most individual and compelling music of the twentieth century". Weinberg's output was extensive, encompassing 26 symphonies, 17 string quartets, nearly 30 sonatas for various instruments, 7 operas, and numerous film scores.