Stamina is the fourth CD in Ariella Vaccarino's Voice Lesson to Go series. It is compiled of vocal exercieses designed to challenge and strengthen any singers' abilities. The vocal program in Stamina will train the singer, like an athlete, in building abdominal strength and vocal endurance. This is the most advanced of the series and is designed to challenge the singer. In part 1 of Stamina, Ariella Vaccarino introduces, and walk ou through each new exercise. Once mastered, you can sing freely without any interruptions to part 2, which is straight piano accompaniment to all the vocalizes.