A metal, plastic, or wooden toy can quickly harm a piano. Back To This Question Go To Top of Page 9. Mice and moths love pianos. They provide a source of food and nesting material. In many parts of the US moths can eat the felts in your hammers and under the keys in one season.
Moth balls are a cheap preventative.
Mice tend to live in unused pianos. They will use the under-key felt for nests, chew up your wooden keys, and pee on the strings, instantly killing the bass strings. Mouse traps will save you a lot money. Back To This Question Go To Top of Page 10. Yes, they do, but rarely.