How long can a piano go without being tuned?
I tuned a piano last year that hadn’t been tuned for 80 years. After 4 tunings it’s still out of tune, 2 whole keys flat. The longer a piano goes without tuning the harder it is to bring it back into tune. A piano that has had frequent tunings for 10 years can survive years without another one, but there will be a penalty to pay: unstable tuning.
