Kathryn Kasper has spent more than 50 years standing next to a piano, diagnosing vocal faults, and helping singers from all backgrounds discover their true instrument. Her new book, Singing: A Technical Guide, distills that experience into a practical manual for voice teachers, professional and amateur singers, pop soloists, and choir members. The book's significance lies in its unified approach: it treats classical, Broadway, and popular techniques as variations of a single system, grounded in anatomy and sensation rather than abstract theory.
Across 19 chapters, Kasper walks through the entire singing system from the diaphragm up. Early chapters cover inhalation and support, framing breathing as a coordinated athletic event involving the diaphragm, external intercostals, and upper abdominals. She then introduces the larynx, tongue, and pharynx as the lower architecture of the vocal tract, and maps the rest: lips, hard palate, soft palate, cheeks, and jaw. Middle chapters tackle what she calls "the fundamental"—the raw sound created at the vocal folds before the vocal tract shapes it into language—through vowel projection, resonance tuning, the Alexander Technique, and harmonic relationships.
The book is also personal. Kasper recounts a humbling lesson when a doctoral teacher told her he did not hear much resonance in her voice, sending her on a years-long search that led to an old Italian method involving inhaling through the mouth while smelling a flower. Such anecdotes illustrate her empirical, feel-based teaching philosophy, which she argues should return to prominence. She cites William Vennard, Richard Miller, Joan Wall, Robert Caldwell, and Theodore Dimon while making her case.
Registration and passaggio transitions receive detailed attention in Chapters 9 and 10, where Kasper favors the glissando as the primary tool for smoothing breaks. She is direct about the fact that popular singers, Broadway performers, and classical vocalists all share the same underlying technique even when their choices about register mixing differ. Later chapters cover the International Phonetic Alphabet for English, melisma, interpolation, and runs, with attention to both Baroque ornamentation and contemporary popular style. The final chapters address special issues: pitch matching, singing in tune in the upper register, vibrato problems, TMJ, and the concept of "covering" the voice.
Kasper's biography informs the book's authority. Born in Lima, Ohio, in 1940, she grew up in a Mennonite family that sang in four-part harmony before she ever set foot in a formal music classroom. She earned a Music Education degree from Bethel College and a Master of Music in Voice from Wichita State University. A Fulbright fellowship took her and her husband, Arlo, to Wiesbaden, Germany, for two years. She then spent three decades teaching voice at Bethel College, performing annual recitals, and co-producing theater with Arlo. After retiring in 2006, a second Fulbright brought the couple to the UniNorte Opera Company in Asuncion, Paraguay, where they have lived for 20 years. During that time, Kasper helped prepare a 540-voice choir for the visit of Pope Francis in 2015. She continues to teach at university programs and privately across Paraguay. She and Arlo have been married for 63 years.
The book reads the way Kasper teaches: information is repeated from chapter to chapter because, as she writes, "repetition is how we learn." Exercises appear at the end of most chapters, many drawn from real studio sessions—sit-ups while singing, wall squats for posture, lip trills for pitch matching, and the finger-in-front-of-the-nose trick for checking projection. The book is designed to work alongside Kasper's YouTube channel (Kathryn Kasper or kaspervocalmethod), where many exercises are demonstrated on video.
For the vocal pedagogy field, Singing: A Technical Guide represents a significant contribution: a unified, practical system from a master teacher who has spent a lifetime refining it. It insists that the system is learnable, offering a roadmap for anyone seeking to improve their voice.
