The quena (hispanicized spelling of Quechua qina, sometimes also written kena in English) is the traditional flute of the Andes. Traditionally made of totora, it has 6 finger holes and one thumb hole, and is open on both ends or the bottom is half-closed (choked). To produce sound, the player closes the top end of the pipe with the flesh between his chin and lower lip, and blows a stream of air downward, along the axis of the pipe, over an elliptical notch cut into the end. It is normally in the key of G, with G4 being the lowest note (all holes covered). It produces a very "textured" and "dark" timbre because of the length-to-bore ratio of about 16 to 20 (subsequently causing difficulty in the upper register), which is very unlike the tone of the Western concert flute with bore ratio about 38.