The word viola originates from the Italian language, where it served as a general term for string instruments before becoming specific. In the 17th century, Italians used the phrase viola da braccio to distinguish these instruments from those played on the leg.
A full-size viola body measures approximately one inch longer than that of a violin, typically ranging between 390 and 425 millimeters. Unlike violins which have a strict standard size, violas vary significantly in dimensions to accommodate different player needs.
Violists must use wider-spaced fingerings because notes are spread further apart along the instrument's fingerboard compared to violins. The thicker strings require more weight applied by the bow to vibrate properly, demanding a heavier bowing technique.
Music written for the viola primarily uses the alto clef, which places middle C on the third line of the staff. This notation differs from most other orchestral instruments that rely on treble or bass clefs exclusively.
Béla Bartók and Paul Hindemith composed major concertos that remain central to the modern repertoire today. William Walton and Bohuslav Martinů also contributed well-known viola concertos that expanded the instrument's visibility.