The keys used to be made out of ivory but are sometimes now made out of plastic like material over wood.
The tusks of the elephants are made into the keys of a piano.
I really do not think it can be done. At one time, piano keys were made from ivory. If the ivory began changing, you could do things to it to keep it white. Today's piano keys are made of plastic. There is nothing you can do with yellowed plastic piano keys. Throw them away and replace them with new, white, plastic piano keys.
There are 88 keys on a piano (52 white keys and 36 black keys).
ebony
Some can, but not all
They are not made out trees. They are made out of ivory.
88 Piano Keys
no they are made from ur mum's body fat
There are 88 keys on a piano.
A normal piano has 88 keys. A "Cottage piano" has 64 keys. The 7'4'' Bosendorfer has 92 keys. The 9'6'' Bosendorfer has 97 keys. Standard pianos have 88 keys.
36 black keys are on a piano.
88 KEYS on a Piano