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J. S. BACH Jonathan Berkahn - Victoria University - Victoria ...

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The close integration between keyboard figuration and big chords in bb.16-20 is also<br />

uncommon. Furthermore, the tonality fixes itself resolutely on D minor throughout,<br />

without the slightest detour even to the nearest of related keys. Traditionally, the<br />

chordal passages in such a Praeludium (descended from Frescobaldi’s toccate durezza<br />

e ligature) were opportunities for the composer to display his harmonic imagination,<br />

and some extraordinary dissonances and harmonic shifts often resulted. Here, the<br />

harmonic imagination of this composer extends as far as the diminished seventh, and<br />

no further. 39 A consequence of this, of the genre’s expectation of a high level of<br />

rhetorical dissonance, and of the extreme tonal stasis, is that the sonority of the<br />

dominant minor ninth in D minor itself acquires an almost thematic significance,<br />

recurring as it does in bb.2, 10, 19, and 21-27.<br />

If the first section raises doubts about Bach’s authorship, the fugue only<br />

39 Ibid., 333, 334.<br />

54

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