Gadulka

The Gadulka (Bulgarian: Гъдулка) is a folk Bulgarian string musical instrument played with a bow.There are two types of gadulkas; the most common has three or sometimes four main strings, with many lesser strings, and a smaller variant in the Dobruja region has only the three main strings. In most variants, the lesser strings are placed underneath the main strings as sympathetic strings. The main strings touched with the tips of the fingers or the fingernails and not pressed all the way down to the neck of the instrument. The gadulka is played vertically, and the bow held horizontally with the hair facing the player.
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Bulgarian type of fiddle played upright; usually reasts on knee. Has three or four strings, very similar to a rebec.