The central B sections of both movements are freely developed and highly virtuosic; they are filled with violinistic figurations including keyboard reworkings of bariolage, a technique that relies on the use of the violin's open strings. The B section in the first movement starts with repeated note bariolage figures:
The central sections of both movements are elaborately developed and highly intricate; they feature complex violinistic passages, including keyboard reinterpretations of a technique that employs the violin's open strings. The B section in the first movement starts with repeated patterns of note bariolage.