- Hal Leonard Corporation
From the classroom to the concert stage, experience a high school choir's vocal transformation from beginning to advanced level. Step by step, through daily practice and using proven techniques, experienced educator Christine Bass transforms her students' singing into a free, healthy, blended and mature sound. A must-have in your professional library! A booklet containing 36 exercises is included with the 2-DVD set. This is endorsed by Z. Randall Stroope, who says, "Vocal Transformation is one of the most remarkable teaching tools for conductors that I have ever seen."