When Robert Lowrey uses the word "restoration" in describing the complete overhaul of a fine instrument, the intent is to make the piano as "new again" as possible in every respect. This work always takes a long time and is an expensive process, therefore there are certain prerequisites before any instrument is selected for this process. The complete restoration of an older piano may not always be necessary. If it has aged well enough some form of less expensive repair is possible. The best technical advice is needed when considering repair or restoration. It is true however, that pianos tend to age like people and houses do, so when they are 80,90, or 100 years old or more, major work usually is necessary. It is a very painful experience financially & musically to have paid for simple repair when major restoration should have been undertaken.