Low whistle grip" may be required due to the distance between the holes. They belong to the same woodwind instrument family of end-blown fipple flutes. Though the tone of this instrument varies subtly among makers, low whistles are generally characterised by a more breathy, flute-like sound than traditional tin whistles. While the precise history of the low whistle is often debated, it is known that various kinds of vertical fipple flutes have existed in antiquity. The fipple flutes developed during the 16th century were the ancestors of today's low whistle, carrying through from early transverse flutes the six-holed design tradition and conical
Tin whistle tonic note of the first register; this makes it harder to accidentally drop into the first register and helps to correct pitch. Recorders perform this by "pinching" open the dorsal thumb hole. Various other notes (relatively flat or sharp with respect to those of the major scale) can be accessed by "cross fingering" techniques, and all the notes (except the lowest of each octave/register) can be flattened by "half holing". Perhaps the most effective and most used cross fingering is that which produces a flattened form of the seventh note (B instead of B on a C whistle, for example,