What should I use to clean my piano keys so that they don't get greasy or sticky? I notice some dust on them but not sure what to use.
I have always used warm soapy water on a wash cloth, not dripping, for dirt and grease, and then I dry it with a soft towel. For dust and loose dirt, I use a vacuum cleaner with a dust brush attachment and I focus on the spaces between the keys as well as the tops of the keys. For the piano cabinet I just use a tack cloth to keep it clean.