Saw sam sai

The saw sam sai (Thai:ซอสามสาย, pronounced [sɔː sǎːm sǎːj], rtgs: so sam sai, also spelled saw samsai, and occasionally called simply sam sai; literally "three stringed fiddle") is a traditional bowed string instrument of Thailand. Its body is made from a special type of coconut covered on one end with animal skin, and it has three silk strings. Typically, the player glues a jewel onto the skin before playing, to reduce the skin's resonance.