- David Morton
Bamboo duct flute of Thailand. It has seven fingerholes (six on the khlui ū) and a thumbhole at the back; the duct is also on the back. Like many Chinese flutes, it has two further pairs of holes cut at right angles at the lower end of the flute; the transverse pair is laced with a cord for ease of carrying or decoration, and the other two remain open as tuning vents. The characteristic buzzing sound of the khlui is produced by an extra hole covered with bamboo fibre or, more commonly nowadays, tissue paper. This hole is located on the right side of the instrument (as it is held in playing position), just above the thumbhole. All khlui are tuned to approximate an equidistant heptatonic scale.
The three main sizes of khlui are the khlui lip (36 cm long and 2 cm wide with the lowest pitch about ...