How often should I have my piano tuned?
It might surprise you to know that in concert-hall situations, the artist’s grand piano is tuned before each concert performance, even if there are two performances on the same day! I have tuned the same on-stage piano four times in the space of a week. A local recording studio has a standing order with me for a tuning each and every month.
A more common situation is your home piano! Most manufacturers recommend twice-yearly visits by the piano tuner.