The violin or fiddle is a string instrument belonging to the box-neck lute. Its four strings (g - d1 - a1 - e2) are mainly bowed with the hairs of a bow or struck with the hairs of the bow or plucked with the fingers (pizzicato). The violin plays a prominent role in the tradition of classical European music. In all epochs of music history since the violin appeared, important works have been written for it. At first glance, the viola looks like a larger violin, but is somewhat differently proportioned, tuned lower and sounds darker.