’In sum, Dudeque's book is a useful and diligent survey of Schoenberg's theories, especially as concerns tonal regions, developing variation, and Grundgestalt. The book adds to the already sizeable literature on these concepts.’ Music and Letters ’Skillfully using scientific methods, Dudeque accomplished a comprehensive and systematic approach to Schoenberg's theory, which has not been done before. The book is also well-argumented, critical and polemical, allowing numerous interpretation options.’ IRASM ’... the sole English-language monograph on the topic... indispensable for anyone interested in Schoenberg's musical thought and analytical approach.’ Journal of the Society for Musicology in Ireland