Piano tuning is the adjustment of the tuning pins so that all the strings are of the proper tension (pitch), to have the correct sounding, musical intervals. In most cases a piano should be kept at A=440Hz – the internationally recognized pitch called “concert pitch”.

Factors such as frequent humidity and temperature changes within the piano’s environment are what knock the piano out of tune most. In order to maintain this pitch and the stability of the piano for tuning, it is absolutely vital that your piano be tuned regularly. Failure to do so may result in your piano becoming too unstable to hold its pitch. In this case one tuning may only ‘hold’ for a matter of a few weeks – or even only a few days!!(see here “How Often Should I Have My Piano Tuned?”)