It's Alive!!!
Your piano's pitch level is constantly in motion. All the parts are subject to change with fluctuation of temperature and humidity. If you move your piano to a new location, wait 4 weeks before tuning it to allow the piano to acclimatize.
Keep it happy.
Most pianos are designed/ to be pitched at A440. Keeping them at pitch provides maximum quality of sound. If your piano has fallen 10 cents or more since your last tuning, a pitch raise may be in order.
Good Sounds
Tuning your piano will result in a more pleasing listening experience for you and your audience, be it just for yourself or a concert experience. Manufacturers recommend tuning annually, no matter how much usage the piano may get. School tunings recommended before each concert, 3-4 times a year. Concert hall pianos are tuned before each performance.
