The book is aimed at teenagers and older music students. It is a book that explains and analyzes the phenomena and characteristics of sound, the formation and identification of elements of the theoretical system through formulas from physics and mathematics, supplemented by tables and diagrams.

The perception of measure, rhythm, and all the basic elements of music is presented in such a way that the reader, upon completing their study, will have resolved all the technical issues related to explaining the symbols of music in detail, allowing them to understand and perform a piece to the fullest extent.

A proper study of the book provides the reader with the means to further develop their theoretical understanding of the tonal system, such as chords, scales, and more. In addition to the content of classical music theory, several elements are provided that are useful for harmony lessons.

References are made to other music genres such as jazz scales, contemporary music, folk music, etc. Sheet music and ensembles ranging from solo instruments to symphonic orchestras make the reader feel confident in what they see, recording, reading, and understanding musical notation.