The topic of this thesis is "The tradition of male and female klapa singing in Novi Vinodolski". In this thesis, the concept of klapa singing is discussed as a polyphonic a capella singing that has its roots in Dalmatia. It deals with a historical overview and the path of klapa singing from a modest tavern and narrow cobbled streets, to the festival stage, then to the UNESCO list of intangible world heritage in Europe. The thesis shows the value and authenticity of this Croatian traditional vocal music, its journey from the homeland to other parts of the world, and brings research that shows how the klapa song settled and stayed in Novi Vinodolski. It provides a historical overview of the town of Novi Vinodolski, given that history has greatly influenced the continuous nurturing of Novljana's original folklore, in which Croatian traditional music plays a significant role. It has been investigated how the people of Novljana, by cultivating the non-tempered singing typical of this region, received and continued to nurture klapa singing with open hearts. In the graduate thesis, field research was conducted, which includes interviews with the bearers of klapa life in Novi Vinodolski, and on the basis of which the tradition of male and female klapa singing in this city was researched and described. Several folk songs from Novi are enclosed, processed and adapted to klapa singing, as an additional seal of the work in which special emphasis is placed on the fact that Novi Vinodolski nurtures three intangible cultural assets: the Istrian scale, the Novljanski mesopust – the carnival custom of Novi Vinodolski and klapa singing. This coastal town, in addition to giving birth to the original folklore and folk customs of Novljana, has also given rise to male and female klapa, thanks to which it has become the "law of klapa singing", and which are trying to pass on this famous tradition to the younger generations.