Violins are the smallest and highest-sounding string instruments in the string family and are known for their clear, expressive and versatile sound. They are played with a bow and can perform both melodies and fast, virtuoso passages. Violins play a central role in symphony orchestras, chamber music and solo works, but are also widely used in modern music styles. Their wide dynamic range allows them to produce soft, subtle tones and powerful, piercing sounds. Violins are often the leading voice in an ensemble and are essential to the melodic structure of many pieces of music.