“What is the difference between a violin and a viola?… The viola burns longer” says the famous joke…

The sounds of the violin and cello are recognized by most listeners thanks to a large solo repertoire often played on the radio or by symphonies.

Yet, the viola is the indispensable heart of the string family, bridging the bright treble of the violin and the deep resonance of the cello. Positioned at the core of the harmonic architecture, it provides the warm, rich inner voices that transform a simple melodic outline into a complex, multidimensional tapestry. Beyond its fundamental role in filling out chords, the instrument possesses a uniquely dark, soulful tone quality that adds emotional depth to chamber and orchestral repertoire. Without the stabilizing presence and distinctive timbre of the viola, classical string music would lose both its harmonic integrity and its most expressive, compelling voice.

Emerging alongside the violin in early 16th-century Italy, the viola is actually the oldest member of the bowed string family and served as the fundamental template from which both violins and cellos evolved.

During the Renaissance and early Baroque eras, violas were crafted in various sizes—including large tenors and smaller altos—to middle-register harmony in multi-part ensemble music. As orchestral music shifted toward brilliant, agile melodies in the 18th century, the unwieldy tenor viola was largely phased out in favor of the more manageable alto size, though this often left the instrument unfairly relegated to simple, accompanying inner voices.

The viola’s historical status transformed radically between 1780 and 1860.

Wolfgang Amadeus Mozart—an avid violist himself—wrote groundbreaking independent parts for the instrument, most notably his string quintets, mostly written between 1787 and 1791.

In 1834, Hector Berlioz showcased the viola’s expressive capacity in Harold en Italie, while Johannes Brahms elevated its rich, dark timbre through major chamber works and his two late Viola Sonatas (Op. 120). Henri Vieuxtemps played a vital role in elevating the viola voice by composing dedicated solo works that utilized advanced violin techniques—such as his 1862 works: Elegie, Op. 30, and Sonata in B-flat major—he demonstrated the instrument’s rich expressiveness and greatly expanded its concert repertoire.

Berlioz said about Vieuxtemps: « Mister Vieuxtemps is a prodigious violinist in the strictest sense of the word. He does things I have never heard done by any other before. He posits frightening dangers to the listener, but he stays calm and unshaken, confident that he will succeed . Had Vieuxtemps not been recognised as such a great virtuoso, he would be acclaimed as a great composer! The future will do justice to his work of rare beauty, informed order, unwavering presence, majesty and impeccable taste. »

In the 20th century, virtuosos like Lionel Tertis and William Primrose commissioned new repertoire, inspiring composers such as Paul Hindemith, Béla Bartók, and William Walton to write landmark concertos that established the viola as a premier solo instrument. Violist virtuoso Rebecca Clarke composed herself a viola sonata which impressed the judges of the 1919 Berkshire competition that the story is still resonating one hundred years later…

Today, the viola is celebrated not just as the harmonic anchor of string ensembles, but as a soloist’s instrument prized for its unique, warm, and deeply expressive voice.

Despite sharing a similar name, the modern viola is not a direct descendant of the viola da gamba, but rather evolved from the Renaissance viola da braccio family.

While the viol (viola da gamba) features flat backs, sloping shoulders, frets, and six or more strings tuned in fourths, the modern viola belongs to the violin family, featuring rounded shoulders, a carved back, no frets, and four strings tuned in fifths. The two families coexisted for centuries before the da braccio family ultimately supplanted the viols in classical ensembles due to its greater power and projection.

The viol consort and da braccio families, when co-existing, also had different social status, as we already covered in our previous post in 2024.