All about Tuning and Repairs!

       First of all, piano tuning does not last forever. In my experience, there are 3 main contributing factors to a piano going out of tune:
                     1) Seasonal changes (effects of temperature & humidity)
                     2)  Style & frequency of Playing
                     3)  General wear & tear over time (In brief, the older the piano = more sensitive, whimsical & fastidious) 

     First you must understand how a piano works. The vibrating string, which produces the sound, is held under tension between the [tuning pin] and at the other end on the metal harp (the iron frame). On a typical piano the total amount of tension can reach up to 20 tons. (comparatively, a guitar hold about one ton of pressure on its neck). 

        Now, if you want to know more about why a piano, like most tempered instruments (saxophone, guitar, trumpet etc.) need to be slightly out of tune, in a calculated way, so that the purely musical ear can make sense out of it, you can read more on this subject in the sub-menu called [TEMPERAMENT].  

         You can also learn, in another sub-menu, about other adjustments necessary to match the natural [INHARMONICITY] of your piano. 

       In the section Repairs, you may look on 3 topics: 

                    1) ‘Regulation’       

Action regulating is the basic mechanical adjustments pianos are often needed.                                                                                                                     

                    2) ‘Voicing’              

Where we talk about the impairment of a piano tone due to worn hammers and how to remedy it.

                    3) ‘Other Repairs’  

Talks about the other things that can be fixed on a piano: from restringing  to simply fixing sticky keys.