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

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Beethoven’s Grosse Fuge, op.133, Warren Kirkendale calculates that not more than 45<br />

percent is actually fugal. 25<br />

The opening of Mozart’s overture could be taken as a model for seamless<br />

transition between fugal and non-fugal—anti-fugal, even—material. The bustling<br />

orchestral continuation (bb.29-) clearly references the second half of the subject and its<br />

countersubject and ought to sound contrapuntal, with its dissonances and suspensions.<br />

Instead, its self-evident function as an orchestral tutti, and the long-term tonal goal it<br />

points toward, overwhelms whatever contrapuntal significance it might have had.<br />

Likewise, the cadential theme that arrives when B flat is finally established<br />

(b.44) is undeniably contrapuntal, in principle. A loosely imitative dialogue takes<br />

place between flute and oboe, while the subject’s head-motive (in thirds) is imitated at<br />

the fifth between the bassoons and clarinet. And yet, with its easy swing between<br />

tonic and dominant, transparent texture, homophonic ‘oom-pah’ string<br />

accompaniment, and large-scale repetition (bb.49-50/51-52, and 49-58/59-68), nothing<br />

could be further from the genuinely fugal style of the opening.<br />

This transformation of the head-motive’s affect, structural function, and texture<br />

each time it recurs (compare bb.1, 38, 42, 44, 49, 88, 98, 113, 129, and 204) perhaps<br />

serves as the best indication of the difference between Classical ‘thematic<br />

development’ and fugal imitation. A sonata movement’s very existence is predicated<br />

upon contrasts—of texture, affect, rhythmic movement, harmonic change, theme—that<br />

fugue cannot possibly absorb while remaining fugal. 26<br />

It is worth asking just why the presence of later eighteenth-century material<br />

such as periodic cantabile melody, or homophonic orchestral tutti, should disrupt the<br />

course of a fugue in a way that earlier non-fugal material—Fortspinnung concerto-like<br />

passagework, for example—does not? Part of the answer lies no doubt in what had<br />

25 Fugue and fugato, p.265<br />

26 See pp.186-93 below where Samuel Wesley’s Fugue from a Subject of Mr Salomon attempts to<br />

absorb just such contrasts into a generally fugal style.<br />

24

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