The Violin is the highest string instrument used in the modern orchestra. Typically, violins are divided into two sections - first violins and second violins.
As with all string instruments, it has a wide range, capable of playing well-above the practical range indicated through the use of harmonics.
The lowest two strings have a rich and dark tone, while the upper two strings are brighter, with the high E string being particularly brilliant. A violin playing on their highest string can carry through thick orchestrations more effectively than on the lower strings.