What piano is made of
A keyboard instrument with a hammer action (Cristofori).
- Keyboard — has part. A keyboard.
- Lever — has part. The hammer action is a system of levers.
- Piano hammer — has part. Hammers strike the strings.
- Tuning fork — uses. Tuning.
- String vibration — uses. Strings.
- Wood — is made of. The case and soundboard are wooden.
- Brass — is made of. The strings of early pianos were brass and iron.
- Felt — is made of. The hammers are covered with felt.