The Xaphoon (also known as Maui Xaphoon or Bamboo Sax) is a single-ree keyless bamboo wind instrument. The Xaphoon was invented during the 1970s by the American instrument maker Brian Wittman, who still makes all of his instruments by hand, using local bamboo cut from the forests of the eastern end of his home island of Maui, Hawaii. It is very similar in construction to the chalumeau, a keyless European single reed folk instrument that was the ancestor of the clarinet. Although the Xaphoon is referred to as a Bamboo Saxophone, it is actually more similar in tone to a clarinet in its lower octave. Its sound also bears some resemblance to cylindrical double reed instruments with a similar timbre such as the Armenian duduk or the Chinese guan.