Source:
http://en.wikipedia.org/wiki/File:ChileanPanpipes-cutout.jpg
The panflute consists of a series of independent pipes strung together into a single instrument. It does not have fingerholes like the flute. Each pipe has a different length, and creates a unique pitch, depending on the properties of the pipe. Each pipe is closed on one end, while the musician's lips blow into the tube of the pipe in a similar fashion as one would blow into a bottle to make a sound. Other instruments that use independent channels of airflow like the panflute to create sound are the harmonica and pipe organ.
Andean panflute (zampoña)
Source:
http://en.wikipedia.org/wiki/File:ChileanPanpipes-cutout.jpg
The panflute is an ancient instrument and part of Greek mythology, which was first recorded by Homer, who probably lived around the 1100BCE or 800BCE, depending on how the sources are interpreted. By his time the Greek pantheon was already developed. Regardless of how dates are interpreted, or the validity of authorship of the texts attributed to Homer, the instrument dates back at least 3000 years.
Its antiquity is also demonstrated by the fact that it is found on all continents, but with different names. In China it is known as the paixiao (pái xi?o, pai-hsiao), in the Andes mountains as the zampoña, in eastern Europe as the nai, and so forth. It has many different names used by many different cultures.
http://www.metacafe.com/watch/1159457/pan_flute_fantastic_sound_antwert_belgium/