Not just the violin bow all string instruments have to be played with a bow. The bow is moved on the instrument to cause a vibration which is emitted as a sound. Without the bow the violin cannot produce a sound.
The sound is produced by rubbing the bow across the strings. When the player pulls the bow across the strings, it is called a down – bow. The strings are sounded either by drawing the bow across them or by plucking them. When the player pushes in the direction of the tip it is called an up – bow.
In music, a bow is affixed with hair so that it is moved across the musical instrument to cause vibration, which the violin emits as a sound. The sound is produced by the drawing of the bow against the strings. It helps to sustain the music's sound and quality. String players control their tone quality with the bow. When the violinist pulls the bow across the strings, it is called downbow.
The downbow stroke is used for weak beats. When the player pushes in the direction of the tip, it is called an upbow. When the hair from the violin bow contacts the string, it results in a fuller, more even sound. The bow helps give the player more consistent results and can also compensate for shortcomings in playing technique.
