Keyboards
Have you ever made music by pressing keys? If you play an instrument from the keyboard family, you have. The most popular keyboard instruments are the piano, harpsichord, and pipe organ.
In a piano, small hammers hitting the wire strings make the sounds you hear. The strings are different sizes. Long, thick strings that vibrate slowly make the low sounds. And short, thin strings that vibrate very quickly make the high sounds.
When you press down a piano key, two things happen. A small cushion swings out of the way so the strings for that key can vibrate. At the same time, the key pushes a lever. This lever swings the hammer against the strings.
Picture Credit : Google
