Yatga is the musical instrument of which country?

The yatga is a traditional plucked zither of Mongolia. It is derived from Chinese "guzheng".

Yatga may vary widely in size, tuning, and number of bridges and strings; The body is a long wooden box, one end of which is angled downward. The performer plucks the strings with the fingernails of the right hand; the left hand is used to put pressure on the strings, varying the note. The left hand can also be used to play the bass strings without plectrums (picks).

The strings are made either from silk, horse hair or goose gut.

The yatga descended from the Chinese zheng. Historically, the twelve-stringed version was used at the royal court for symbolic reasons; the twelve strings corresponded to twelve levels of palace hierarchy. The commoners had to play on a 10-stringed yatga. The usage of the 12 or more stringed version was reserved for the court and monasteries.

The traditional Mongolian epic Janggar tells the story of a young princess who once played upon an 800-string yatga with 82 bridges; she is supposed to have only played on the seven lower bridges.