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What is Tuning Stability

At first, tuning stability is what the tuner leaves behind. It is possible to adjust tuning pins to get the right pitch, but leave segments of the string with unresolved tensions, that may resolve as soon as the string is struck hard and loud!!Between the singing portion of the string and the tuning pin are two segments also under great tension (from 120 lbs to 300 lbs each) If the tuner (from experience and training) has not kept these in mind during adjustment, they can slide infintesmally over their bearing points and change the pitch of the string.

Tuning Stability, Part II

Piano design….

You’re looking at the sound system of a grand piano. The gold cast iron harp holds the immense tension horizontally from 230 steel strings. (held from the hitch pins on the right to the tuning pins out of sight on the left.