The piano is a delicate instrument which is influenced by various weather conditions (heat, cold, high humidity, dryness, air conditioners and more).In addition, in order to compensate for the effects of wear, it is important to service every few years. The servicing could include the compacting and settling of cloth, felt, and buckskin, as well as dimensional changes in wood and wool parts.
There are several pests such as moths and mice which harm a piano.Therefore, it is important to perform thorough cleaning once a year.