the largo begins with a simple walking bass in the harpsichord which for the first three bars is annotated as a figured bass. the violin enters with the theme which is imitated in canon by the upper harpsichord part two bars later. the second complete statement of the theme is in the harpsichord with the canon in the violin, which passes into its "noble" lower register playing an expressive descending sequence of long sustained notes in suspension. it is during this passage that the third middle voice is first heard in the harpsichord playing semiquavers which dovetail with those of the main theme in the harpsichord, the combination of parts developing into a semiquaver accompaniment.