Like No 2 in D minor the prelude is cast in ternary form. The similarity of the opening motif to that in the last movement of the Pastorale
, BWV590, has often been noted. The fugue subject has the characteristics of a north German fugue, particularly the rocking semiquavers of the second bar. As with the C major fugue the part-writing is not particularly developed.
from notes by Stephen Westrop © 2000