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Peg Box
The pegs of string instruments are of wood and are carefully fitted into the part of the instrument’s scroll called the peg box. The slight adjustments necessary to tune accurately also require that the player push inward on the peg at the same time so it will not slip, as there is a great deal of pressure on each string when it is fully tuned. String players learn to twist their fingers into odd configurations according to which peg they are turning, and how the head of the peg happens to be aligned, as violist Marylene Gingras-Roy demonstrates here.