The top part dominates this Invention, with the bottom
part accepting a subsidiary but hardly dull role. The
bottom tends to echo the top's rhythms and melodic
contours a few beats behind, without precisely
duplicating the melody. So although Bach here works
with a greater variety of note values and rests than is
common in his Inventions, he achieves a sense of
constant forward motion by having one part continue to
chug away when the other is elongating a note or
pausing for a beat.
Although originally composed for Harpsichord, I created
this arrangement for Viola Duet.