The song has a high-pitched vocal technique, i.e. a loud call using head tones, so that it can be heard or be used to communicate over long distances.
In the outdoor setting, they also found that head voice production exhibited a 25.2 dB decrease at 11 meters from the source, compared to 1 meter from the source, while the corresponding amplitude decrease in kulning was only 9.4 dB, which is a clear indication that kulning is well-suited to carry over long distances in an outdoor setting.
A study done by Finnish and Swedish universities[2] showed that kulning, as compared to falsetto, exhibits a better contact of the vocal folds and a longer glottal closure in the phonation cycle.
Using nasofiberendoscopy also showed medial and anteroposterior narrowing of the laryngeal inlet and approximation of the false vocal folds in kulning.
In France, briolage is a set of "techniques of calls and exhortations to the ploughing animals in most cases, intended to guide them.
"[3] Norwegian composer Edvard Grieg based a few of his classical music compositions for piano and for orchestra on kulokker that he had heard.