A song loan, (pronounced as /vi/) or song lang or song lan) is a percussion instrument (idiophone) used in Vietnamese traditional music.[1] [2]
The song loan consists of a hollow wooden body about 7 cm in diameter attached to a flexible curved metal piece ended with a wooden ball.
It is put on the ground and can be played by using the foot to force the ball to beat the body of the instrument.
The song loan is mostly used to keep the beat in Vietnamese traditional chamber music such as ca Huế), and theatrical music such as nhạc tài tử and cải lương.