The most important maintenance for a piano is
regular tuning. The combined tension of all the strings is
in excess of 38000 pounds, and requires adjustment at least
once a year, regardless of how much or how little it is being
A piano left untuned for many years can drop
far enough in pitch that it would require several tunings
or even restringing to get it back to where it belongs.
A piano action has over 2800 moving parts, most
of which are adjustable and need to be regulated periodically
to keep the touch consistent and efficient.
Pianos that reside in Calgary and surrounding
area suffer a great deal due to the dry climate here. A good
humidifier on the furnace or the same room as the piano can
make an enormous difference in not only the stability of your
instrument but also in the longevity of its lifespan.
As for looking after the cabinet, a damp cloth
can remove day to day fingerprints and dust. Oil or wax can
help protect the wood from the dryness and provide some luster,
but should be used sparingly.