Piano is a great instrument.
piano is an acoustic, stringed musical instrument invented in Italy by Bartolomeo Cristofori in the 17th century
An acoustic piano usually has a protective wooden case surrounding the soundboard and metal strings,
We also have the digital piano is a type of electronic keyboard designed to serve primarily as an alternative to the traditional piano.
ost modern pianos have a row of 88 black and white keys, 52 white keys for the notes of the C major scale and 36 shorter black keys
We have the  pedal keyboard, pedal clavier, or, with electronic instruments, a bass pedalboard
The strings are sounded when keys are pressed or struck, and silenced by dampers when the hands are lifted from the keyboard.
How about the computer keyboard is a typewriter-style device which uses an arrangement of buttons or keys to act as a mechanical lever .