The end-blown flute [also called an edge-blown flute or rim-blown flute] is a keyless woodwind instrument played by directing an airstream against the sharp edge of the upper end of a tube. Unlike a recorder or tin whistle, there is not a ducted flue voicing, also known as a fipple.
Most rim-blown flutes are “oblique” flutes, being played at an angle to the body’s vertical axis. They generate sound by at this end blown voicing by siphon effect. A notched flute is an end-blown flute with a notch on the blowing surface. A lip-valley flute is a type of notched flute.
End-blown flutes are widespread in folk music and art music. In the Middle East and Mediterranean the ney is frequently used, constructed from reed. Depictions of early versions of the ney can be found in wall paintings in ancient Egyptian tombs, indicating that it is one of the oldest musical instruments in continuous use. Further, several ancient Persian artworks also depict the use of Ney in Persian traditional music.