Two-stringed spike fiddle of ivory and hardwood, native to central Thailand. A long neck is attached to a cylidrical body covered in python skin. The handle and pegbox are covered with ivory. A decorative boss and four notches are carved into the ivory at the base of the pegbox. Two silk strings are attached to two front-mounted ivory pegs. The bow (5051.1960) is slightly curved and tapered. Each end is capped with a turned finial of ivory. The hair is stretched from the tip to an ivory button mounted in the bow 14 cm from the end. The so-duang is played upright, resting on the leg, with the bow hairs passing behind the strings.