With the release of the 2nd volume of the exercise books, the three-volume work of D. Pyrgiotis "Music Theory and Practice" is completed. Significant features of the work include:
- the contemporary development of the basic music theory material and its reshaping according to international standards, so that it meets the needs of the new musician and student
- the distribution and arrangement of the material according to modern educational approaches
- the introduction and use of modern and consistent terminology

The remarkably original contribution of the work is undoubtedly the two volumes of exercise books. They contain over 300 exercises, questions, and composition activities. The exercises range from simple applications to complex problems, which simulate real conditions of musical thinking and work.