So U Tro U.wpntr2018-12-19T18:37:20+00:00‘So u’ originating from Thailand and ‘Tro u’ originating from Cambodia are from the same instrument family, both have boards covered with goat and calf hair and these boards are made from barks of the coconut. It resembles an instrument called as ‘Erhu’ originating from China. The bridge of the instrument originating from Thailand is made of rolled cloth, the bridge of the other one originating from Cambodia is wooden. 