Txistu

The txistu (ˈtʃis̺tu) is a kind of fipple flute that became a symbol for the Basque folk revival. The name may stem from the general Basque word ziztu `to whistle` with palatalisation of the z (cf zalaparta > txalaparta). This three-hole pipe can be played with one hand, leaving the other one free to play a percussion instrument. Evidence of .....
Found on http://en.wikipedia.org/wiki/Txistu

Txistu

Basque whistle with three holes. Wooden made, Chromatic, usually in G or C#. less than two octaves. also the TXIRULA: A higher pitched variant of txistu in C.
Found on http://www.hobgoblin-usa.com/info/glossary.htm
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