The study of the twenty-four preludes of Shostakovitch [sic] has a three-fold significance. First, it deals with a body of music literature representing important aspects of twentieth-century music. Secondly, it is an original study since no detailed analysis of these preludes has been made. Very little has been written about this collection of short pieces, and no material is available along the line of a technical, scientific analysis. Thirdly, our subject deals with a collection of compositions written by one of the foremost living composers of today, not only of Russia, but of the entire musical world -- a man who is in the public eye at present, and in whose works the Soviet ideology is reflected.