Composer and pianist Rodion Shchedrin is among the more prominent figures to emerge from the Soviet Union after Dmitri Shostakovich. Shchedrin's extensive catalog of compositions, which encompasses many genres, has evolved from tonal to aleatoric to what he has called "post-avant-garde," and he has often incorporated folk music and liturgical themes. Among his most popular works are his ballets written or arranged for his wife, prima ballerina Maya Plisetskaya, including his ballet arrangement of Bizet's Carmen and Anna Karenina. Shchedrin has written six piano concertos, five concertos for orchestra, three symphonies, and a Commemoration Mass for Maya Plisetskaya, among many other works.