The alto voice between violin and cello since the 1700s
The viola sits slightly larger and lower than the violin: typical tuning C3–G3–D4–A4, a perfect fifth below violin and an octave above cello’s pitch layout. Since the eighteenth century it has been the violin family’s middle, or alto, voice—often reading alto clef.
Italian viola da braccio (“of the arm”) marked it against gamba; Germans borrowed Bratsche, while French once split cinquiesme, haute contre, and taile before settling on alto. In five-part harmony’s heyday it often took three inner lines and sometimes melody. Notation flips to treble clef for high stretches. Quartet and orchestral writing usually assigns inner voices and accompaniment more than first-violin glory, yet Strauss’s Don Quixote, Shostakovich’s Thirteenth Quartet, and Berlioz’s Harold en Italie spotlight it; twentieth-century composers wrote more concertante viola parts.
Construction mirrors the violin in woods and form. Full-size bodies run about 38–46 cm long (roughly 25–100 mm longer than a full violin), averaging 41 cm; children’s sizes start near 30 cm. Thicker strings yield a mellower, slower-speaking tone, so violists must often lead violinists slightly in ensemble. Viola bows weigh about 70–74 g versus violin bows’ 58–61 g, with a wider horsehair band. Makers chase lighter feel without starving the soundbox—Ritter’s ~48 cm viola alta for Wagner, Tertis’s wider deeper model, A. E. Smith’s prized instruments (many in Sydney Symphony sections), Erdesz cutaways, Curtin’s carbon-fibre Evia, Partch’s cello-neck adapted viola, and five-string experiments.
Players are violists or viola players; short-armed musicians often choose smaller bodies. Always slightly too big for the arm yet too small for an ideal air volume, the viola lives in constructive compromise—hence the endless redesigns. Middle voice, alto clef, stubborn body size: the quiet engine of string harmony.
Source: Viola
