What is "klapa"

Klapa music is a form of traditional a cappella singing in Dalmatia, Croatia. The word klapa translates as "a group of friends" and traces its roots to littoral church singing. The motifs in general celebrate love, wine (grapes), country (homeland) and sea. Main elements of the music are harmony and melody, with rhythm very rarely being very important. In 2012 klapa was inscribed in UNESCO Intangible Cultural Heritage of Humanity.