Tin whistle all the holes closed, the whistle generates its lowest note, the tonic of a major scale. Successively opening holes from the bottom upward produces the rest of the notes of the scale in sequence: with the lowest hole open it generates the second, with the lowest two holes open, it produces the third and so on. With all six holes open, it produces the seventh. As with a number of woodwind instruments, the tin whistle's second and higher registers are achieved by increasing the air velocity into the ducted flue windway. On a transverse flute this is generally done by
Tin whistle head, and are almost always referred to as "low whistles" but sometimes called "concert whistles". The low whistle operates on identical principles to the standard whistles, but musicians in the tradition may consider it a separate instrument. The term "soprano whistle" is sometimes used for the higher-pitched whistles when it is necessary to distinguish them from low whistles. The notes are selected by opening or closing holes with the fingers. Holes are typically covered with the pads of the fingers, but some players, particularly when negotiating the larger holes and spacing in low whistles, may employ the "piper's grip". With