<HTML>I had a similar situation, although it seems that the = piano was a newer small wurlitzer grand, where the problem was loose lead we= ights in the damper levers. They would shift enough to bind on a neighbor fr= om time to time. I recall making many trips to the customers house before I = finally figured out what was going on. I tightened the weights in the the ho= les and no more troubles! Good luck! will</HTML>