We get this question now and then.
A simular question is:
“How often does a piano need tuning?”
Another thing is that people often say:
“Oh but I hardly played on it this year. Does it really need tuning?”
Pianos are stringed instruments, and even though they can be protected by certain things like:
or even just standing in a place away from any external elements, “wind, rain, sun, etc.”
They still go out-of-tune eventually.
And no … it’s not necessarily true that a piano that has been moved across the room, needs tuning.