On Contrapunctus XIX -
introduction to theme in the bass at measure 4 sets the tonality. Measures
5-7 and again at 9-11 combine the B-A-C-H germ as a soprano line with the
counterpoint to the main theme, while the bass line takes up the germ at
measures 12-14, answered at 15-16 in the soprano line. The statements of the
main theme yield then to one of the second fugue subjects as stated in
The Art of the Fugue.
countersubject is treated with the twelfth displacement above and a dotted
rhythm to contrast with the equal eighths below. Allowing the tonality to
wander by whole tone colors brings and answer on the raised mediant. after
some development further harmonic digressions still return the subject to
its original tonality.
second theme is combined with the B-A-C-H germ in several transpositions as
an interior counterpoint beginning at measure 61 and thereafter. Following
this the main subject is stated in parallel fifths and then in canon on
quarter apart in a sweet harmonic blur. Additional statements of the
subjects and a short dalliance in the relative major bring this essay on the
themes to its gentle close.
pages, circa 5' 30" - an MP3 demo is here:
The score is available as a free PDF download, though any major
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arrangement with the composer. Click on the graphic below for this piano
On Contrapunctus X1X