Dave's Piano Service
(626) 792-6698

Your piano should be tuned annually to maintain A-440 pitch; i.e., stay in tune with
the rest of the world.  Heavily used pianos should be tuned at least every six months
and will need to be regulated every 5-10 years.
The weather in Southern California is almost perfect for tuning stability; however, if you
live close to the ocean, I recommend a humidity control system be installed. 
Recording Studio
In-Home Tuning
Concert Tuning