The nose flute is a popular musical instrument played in Polynesia and the Pacific Rim countries. Other versions are found in Africa, South America, China, and India.
I have samples from Philippines: Kalinga-Lubagan and Brazil, Nabiquara (flat gourd, like an Ocarina
Zaire
Hawaii
Tonga
Philippines
New Zealand/Māori
Brazil - Nambiquara and Mamainde
Humanatone
Nambiquara nose flutes
Orang Asli (close to Cameron Highlands, Malaysia) playing a nose flute
In the Philippines the 'pitung eelong' (flute nose in Tagalog) or 'Kaleleng' of the northern Bontok people, is played with the extreme forward edge of the nostril. Because the Kaleleng is long, and has a narrow internal diameter, it is easy to play different harmonics through overblowing, even with the rather weak force of the air from one nostril. Finger holes in the side of the tube change the operating length, giving various scales.
Chiwayan, traditional flute maker and musician; Lubagan, Philippines
how to get sound on a Nambiquara nose flute: Brazil
Ohe Hano Ihu: three-holed nose flute from Hawaii.
It is made from a much wider diameter of bamboo than those found in South East Asia. This is a very beautiful instrument although it is capable of only one octave. Like most nose flutes it was traditionally used between lovers. The ohe hano ihu is almost identical in construction to the nose flutes of other Pacific islands such as Tongo and the Marshall Islands were it was also used to calm the nerves of someone getting a tattoo. The ohe hano ihu is undergoing a revival and many professional musicians are taking an interest in the instrument again.