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
Toot, Whistle, Plunk and Boom cavegirl on the head with his club, and drags her off by the hair (which makes Caveman Whistle angry). Professor Owl explains that this system of holes is the basis for every woodwind instrument, including the clarinet played by Johann Sebastian Bach and the saxophone played by a beatnik. Caveman Plunk has discovered that plucking on the string of his bow produces a pleasant "plunk" sound. An offscreen choir explains (as the animation shows) how to create a simple harp from Caveman Plunk's bow by adding a jar to make a resonator, adding some extra strings, changing the jar to