A tuner will also be able to tell you if it's in good shape or not. We had friends who were trying to GIVE away and old upright that a previous owner had upholstered in white Naugahyde (don't ask). We called a friend who was a piano tuner and paid him a fee to do an evaluation of the piano's condition. He said the soundboard was damaged, and it couldn't be tuned or repaired without sinking a lot of money into it, so as a "Free" piano it wasn't going to be a bargain...