The 21st Century Voice, 2nd edition. Rowman & Littlefield (324 pp.). Lanham: MD, December 2014. : Contemporary and Traditional Extra-Normal Voice

In The 21st-Century Voice: Contemporary and Traditional Extra-Normal Voice, Michael Edward Edgerton considers contemporary vocal techniques within an acoustic and anatomical framework. Throughout, he proposes new directions for vocal exploration. Much more than a historical treatise on 20th-century masterworks or vocal science, The 21st-Century Voice explores experimental methods of sound production, offering a systematic series of approaches and methods for assessing, engaging, and, in some instances, overcoming the assumed limits of vocal singing.Appearing a decade after the publication of the first edition, this second edition draws on and advances our current understandings of voice production. Divided into four parts—air flow, source, resonance/articulation, and heightened potentials—Edgerton considers crucial matters affecting vocal production, such as: Registral challenges Filtering Airflow modification Combinatorial, multiphonic principles Extreme voice possibilities Multidimensional vocal issuesWith more than 250 illustrations, 150 associated audio tracks, an extended appendix on voice science, a glossary of key terms, and lists of representative compositions, The 21st-Century Voice will appeal to composers and performers interested in exploring the ever-broadening range of vocal possibilities. Its engagement with the complexities of vocal production should also be relevant to students and scholars of voice science, acoustics, linguistics, computer modeling, and more