Okay, I see.
We know the piano hasn't been regularly tuned for the past five years. We can assume it has been restored or it is unrestored. I'll give you values for both and you can decide what to do.
Assuming the piano Has been restored and is in very good condition, its current fair market (private sale or auction) value is approximately $1,650 - $2,000, depending on location and actual condition.
Assuming the piano is unrestored and is in very good condition, its current fair market (private sale or auction) value is approximately $450, depending on actual condition and location.
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