Klong song na (Thai: กลองสองหน้า, pronounced [klɔːŋ sɔ̌ːŋ nâː] or [klɔːŋ sɔ̌ŋ nâː]) is a Thai barrel drum.
Song na means "two faces", and the drum has two heads that are played with the hands.
It is used primarily in the piphat ensemble.
Center and bottom drums, Thailand klong song na drums, equivalent to Cambodian
skor sang na
drums. Far left and far right drums, Thai
Klong khaek
drums. Image taken Thailand about 1900 A.D.