Arnold Schönberg's influence on the history of composition and 20th century music theory cannot possibly be overestimated. But although his compositions have been thoroughly analysed, Schönberg's music theory has not been equally examined yet. This is due to the fact that no critical complete edition of Schönberg's theoretical works has been available to this day, which could have served as a basis for a genealogy of his theories.

This demand is met by this study. On the basis of a comprehen...