Vocal Tech is an interactive guide to classical singing. It is intended for students of classical vocal music: opera, oratorio, song literature, etc. Any student of singing hoping to build a solid technical foundation can use Vocal Tech. The app discusses Phonation, Resonance, Posture, and Breathing. It includes vocal exercises with recorded examples and a voice recorder for the student, as well as piano accompaniment for exercises. A tenured university professor with a doctorate in voice performance and vocal pedagogy from Indiana University created Vocal Tech.