Vieuxtemps is considered today as the most notorious representative of the Franco-Belgian violin school. Robert Schumann himself spoke in 1834 after a concert by the child prodigy, then aged 14: “With Henri, you can close your eyes with confidence. Like a flower perfumes, so radiates its game. ” Vieuxtemps was also a great viola player and wrote, apart from his many violin pieces, some compositions for this instrument. Composed in 1862, the Sonata op. 36, who goes from an expressive Maestoso to an elegiac barcarolle and scherzando passages, is one of the pearls of literature for viola. It is published here for the first time in an Urtext edition.