Q. How often should I tune my piano?
A. At least one tuning per year.
Q. Is my piano un-tunable and or damaged as a result of not having it tuned in 10, 20, years or more?
A. It may have damaged your ears, but the piano is probably fine. The pitch will likely be extremely flat. The piano typically needs a Pitch Raise and a follow up re-tuning
in one month. Then an annual tuning will maintain
the pitch at A-440.
Q. What is a pitch raise?
A. It's a rough tuning to return the piano to A440 Concert
Pitch.
Q. Is it necessary to tune my piano at A440 Concert Pitch?
A. No. Recommended, but not necessary.
Q. Do you use a machine or tune by ear?
A. I'll use either depending on the piano's tuning history,
the manufacturer, and other variables.
Q. Can you come tune my piano today or tomorrow?
A. Never hurts to ask but, probably not. My schedule
is typically filled for a week or two in advance.
I do have a list of qualified tuners on hand if I cannot
get to you immediately. You may also try PTG.ORG
to find a qualified piano technician.