The revolutionary sequence of the efficient exercises in this book, while they appear simple, fold voice science and Music Learning Theory into the choral warm-up by refocusing choral ensemble warm-up pedagogy on tongue position and the inner architecture of vowels. Using only the triadic 1-3-5 provides a consistent pedagogy for vocal health for every ensemble that creates beautiful choral blend, accurate intonation, and a humanly centered sound for choirs at all levels.