Musicology Annotation << Back Musical Set Theory and Experimental Twelve-tone Theories of the 20th Century Izotova E.A. Musical set theory, which roots lay in the similar mathematical theory, is one of the most popular concepts of the 20th century music analysis. The article considers the musical concepts which were the precursors of the set theory. Key words: set theory, music analysis, mathematics. E-mail: eugenie.izotova@ccmm.ru