Do you have that proverbial E-flat above middle C that sticks?
I can assist you with these problems and more serious ones. Having your piano tuned is a little like changing the oil in your car: It’s something you need to do pretty regularly. But pianos contain many hundreds of moving parts. After many years those parts suffer wear and eventually need adjustment or replacement. Fixing these problems is like taking that car in for new brakes or tires. I can examine your piano and recommend repairs ranging from minor adjustments to a full regulation, replacing worn-out hammers or restringing the instrument.