Description: The gaeng is a free reed musical instrument, having a single brass reed for each cane tube. Some newer instruments (my specimen) has been numbered from the base per tube, aka. 1, 2, 3, 4, 5, 6. Most gaeng have six tubes. The gaeng its self if found throughout South East Asia, in Vietnam, Thailand, and Southern China (near the golden triangle boarder area). The mouth piece can vary in size even up to a meter long. Brass reeds are usually found on this instrument.

The gaeng is in the same classification "free-reed" and same type, and family as the "keluri" in Borneo played by the Iban and the Orang-Ulu people on the Island of Borneo. Materials used in construction are a kind of cane or light wood material, (for whole body) and the pipes are of a cane material, and the reeds are single lamelephone and are hand cut of brass. The rings wrapped around are some kind of bark (not sure of what species).

Citation 2007.07.22 Sunday, asza.com: Gaeng players often demonstrate some level of athletic movements during performance. In the Hmong culture only the men play the Gaeng. In Vietnam the instrument often comes as is, it’s mostly the Hmong who tie the string to the instrument so they can hold it in public or private performances.