'Why perform a pitch raise? Isn’t one tuning good enough?' Your piano tuner / technician must work very carefully to stretch the piano's wires ('strings'), to calculated points of tension, in order for the piano's pitch to rise and then fall, immediately (as intended), to its intended point of bearing - before the actual tuning takes place. your piano's pitch drops further and further away from its proper tension levels. If several years have passed since your piano’s last tuning date, several pitch raises may be in order to help reestablish long-term tuning stability. (1) Vast changes in temperature, humidity, and atmosphere, (2) loose tuning pins, (3) heavy playing, and (4) the placement of your piano can cause pitch to change, to fall flat or be raised sharp, in drastic measure. Generally, a piano that is tuned and serviced regularly does not need to receive this procedure, however:
