The thematic content of the book, as indicated by its title, pertains to a series of actions and individual processes, which are defined by the broad term "Church music" and focus on Smyrna in the 19th century.

An effort is made to trace and evaluate the way in which the uniquely stylistic current of Smyrna was integrated into the broader musical reality of the time, simultaneously playing an undoubtedly modernizing role in areas such as compositional creation, teaching, publishing production, and more.

The study of historical sources combined with the intention to interpret the historical-social context of the era contributed to highlighting those characteristics that defined the ideological-aesthetic identity of the movement in question and simultaneously ensured its historical independence.