These five works – four sonatas and a sonatina – chronicle a century of American writing for the viola and are linked by a concern for directness of musical language. But they also reflect diversity in their origins and inspirations, the Ulysses Kay pieces being written by a pioneering African American, Libby Larsen’s by a successful female freelance composer, Eric Ewazen’s animated by a particularly American lyricism and energy, and the sonata by David Tcimpidis commemorating the ‘9/11’ terrorist attack on the World Trade Center, which Tcimpidis heard unfolding.