Defining a singer's voice type is one of the most difficult and important challenges facing today's voice instructor. These volumes are designed to offer guidance to voice teachers in dealing with hard-to-categorize students. In four concise steps, Lynn Eustis outlines a methodology for determining a singer's voice type: 1. Diagnose the primary technical issues. 2. Observe changes in the sound as technique improves. 3. Understand the psychology of voice type. 4. Use appropriate repertoire to achieve the above goals.