2. How is the violin? The violin is an ancient instrument, it is an string tear instrument. It touches with a bow, this bow moved across some parts of a violin, causing vibration which the instrument emits as sound. The violin has got four strings. In the scores of the violin we almost always using the G clef . The best and the most expensive violin are the Stradivarius. The violins in internet cost about 1.215 euros.