In this collection of more than 40 specialized practice educational Categorized in three stages, in addition to the introduction of training patterns in different periods of time, your work is very convenient. The booklet also exists no superset questions can answer all your questions about the vocalizations. God willing, in the future, the next version of Torbat program with specialized topics will be published in the eulogy. We are specialized in the production of educational programs help with your clever comments. Our goal is progress.