The main issue that primarily underlies the endeavor of writing this book relates to the challenge of managing the phenomenon of urban-folk musical creation in a strictly theoretical but also fruitfully functional manner.

Thus, beyond its scientific-musicological nature, the book also has a purely practical dimension, as it could serve as a systematically theoretical summary or as a teaching manual regarding the study of Urban-Folk music of the interwar period.

Specifically, it examines in detail all the individual phenomena classified within the system of Folk Modes, and defines their basic structural characteristics, which are documented through references to corresponding repertorial cases using visual aids.

There is also discussion of issues concerning modal behavior, melodic development, and idiomatic phenomena, while the basic principles of each Mode are briefly presented in terms of their harmonic management.

For the cases of Folk Modes that have a parallel counterpart in the realm of Ottoman makam or are frequently managed in the context of 78 RPM recordings according to ala turca aesthetic standards, special mention is made through the analysis of the individual intervallic, stylistic, and technical peculiarities accompanying these cases.

The book includes over 70 original transcriptions in standard notation of interwar urban songs, accompanied by detailed morphological-modal analysis. This specific repertory corpus, combined with its corresponding theoretical management, could undoubtedly serve as a catalyst and reference point especially in the field of the teaching process concerning the study and performance representation of Urban-Folk music from the interwar period.