Wiktionary
gusle
n. A single-stringed instrument used by the Slavic peoples in the Balkans and in the Dinarides region, often played with a bow and used to accompany epic poems or legends.
Wikipedia
Gusle
The gusle ( , , ) is a single- stringed musical instrument (and musical style) traditionally used in the Dinarides region of the Southeastern Europe.
The instrument is always accompanied by singing; musical folklore, specifically epic poetry. The gusle player (guslar or "lahutar" in Albanian) holds the instrument vertically between his knees, with the left hand fingers on the strings. The strings are never pressed to the neck, giving a harmonic and unique sound.
Usage examples of "gusle".
In every village house in Serbia there is a gusle, and almost in every family a good singer with the gusle.