A violin is a hollow wooden box with rounded ends and a narrow center. The front and the back of the instrument are slightly convex and connected to each other by the sides, also called ribs. There are four sets of strings on a violin that extend from a string holder at the bottom of the body, over a raised bridge to the end of the narrow neck, which is called the fingerboard. On the fingerboard, the four strings are inserted into a pegbox and are held there with pegs. The pegs are twisted in order to tune the violin, in much the same way as you tune a guitar, in order to raise or lower the pitch of each string. The bow is a long arched strip of wood with horsehair strings stretched along its length. When the bow is drawn across the strings on the body of the violin it produces a sound.
The body of the violin is a resonator, which means that it amplifies the vibration produced by drawing the bow across the strings. There’s a block of wood inside the body of the violin, called a sound post and this device helps to coordinate the vibrations of the front and back panels. There are two F-shaped holes in the table near the bridge that lets the panels vibrate freely.
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