The hammer center pins are loose, and, as the notes are played, they have a tendency to work themselves out of position and dig into a neighboring flange, causing THAT note to get hung up!
Buckskin under the hammer butts is worn, and does not allow the jack to return in place easily, thus causing the notes to not be repeatable;
Other parts are worn, and this, added to an overall very poor design and very poor manufacturing quality, adds up to this being a piano that we cannot sell in good conscience.
IF someone were to buy this piano, they, and we, would experience
nothing but trouble with it.