Book excerpt: George Perle has divided this collection into four parts Composers and Works (Bartïk Berg Schoenberg Scriabin and Webern Towards a New Musical Language Some Critical Appraisals of Contemporary Music Theory and On Listening to Modern Music. These 23 articles reviews lectures and speeches represent the best of 50 years of musical thought and insight by one of the keenest musical minds of this century. Sharing this particular composer's point of view leads the reader to an understanding of the linear progression(not easily apparent) from the last century to the next.