Q&A for How to Clean a Piano

You can clean your piano keys with a wet wipe, like some sort of a sanitary wipe. You only need tot make sure that you don't squeeze the liquid into the keys too much. Just wipe the surface gently to get the grime off. It's good to clean the keys, because they can be really dirty.

You can look for it at a hardware store or use online shopping.

Go to Google Maps and type "piano tuners" into the search function and you should receive a list of service providers nearby.

Try using a rubber eraser to remove the glue. If that doesn't work, any bleach-free, all-purpose surface cleaner should do the job—spot test in an obtrusive location to make sure it doesn't deface the keys, and be careful to avoid getting any on the wood of the piano itself.

Try to play the keys every day and see if that helps at all. I would recommend asking your teacher if you have one.

No, a piano tuner doesn't clean the inside of the piano. It only adjusts the strings to produce the right sound.

Use a feather duster to brush the dust away. If the feather duster doesn't work, use a soft, nonabrasive cloth or piece of cotton. Slightly dampen the cloth and wipe down the finish using minimal pressure followed by a dry cloth immediately afterward to prevent moisture damage.

You can use mild detergent and warm water, diluted bleach solution, diluted vinegar, diluted muriatic acid, alcohol, X14, Medica DC 10, etc. Try your best not to get bleach anywhere near the interior of a piano, to prevent rusting strings. Same with acid (vinegar or muriatic).