Rebecca Clarke's Sonata for Viola and Piano is first known of in 1919, when the composer was 33 years old. Clarke had moved to the United States in 1916, after being disowned by her father. She had been supporting herself with some success as a soloist.
The first reference to the Viola Sonata was upon its submission to a composition competition sponsored by Clarke's neighbor, Elizabeth Sprague Coolidge. Out of 72 entries, Clarke's Sonata tied for first with a piece by the Swiss composer, Ernest Bloch. In the end Bloch was declared the winner, despite all the judges favouring Clarke—it was decided that declaring Clarke the winner would smack of favouritism on Coolidge's part. It was also suspected by some that the name "Rebecca Clarke" was a pen-name of a male composer, as few imagined the possibility of a competent female writing such music. The piece had its première at the Berkshire Music Festival in 1919, and was well received. It, along with the Piano Trio of 1921 and the Rhapsody for cello and piano of 1923, represent the zenith of her compositional career, though afterwards Clarke wrote hardly any more music. The sonata was first published in 1921 by Chester Music.
Clarke gives us an incipit on the first page of the sonata, a quote from La Nuit de mai (1835) by the French poet Alfred de Musset:
The sonata is cast in three movements.
Because of the many different obstacles the piece presents, as well as its highly idiomatic writing, it is becoming more and more a staple of the violist's repertoire.
The Rebecca Clarke Society commissioned an orchestration of the Viola Sonata from composer Ruth Lomon. It was premiered in 2007 by violist Peter Sulski. Subsequent performances have featured soloists Esra Pelivahnli, Catherine Hanson, and Melissa Matson.