Eclogue was originally intended as the slow movement of a Concerto for Piano and String Orchestra. Sketches of the two outer movements exist; but they were never completed, and the composer wished the slow movement to appear on its own. As often happened, Finzi worked on it over a great number of years. The original version dates from the late 1920s, whereas the present, final version was not completed until some twenty years later. The title has been added by the editors.