A fughetta for four voices, comprised of an exposition and coda without episodes and counter-expositions, in the C Lydian Augmented mode. This is the third mode of the familiar Melodic Minor scale, and is notable for the absence of a functional dominant degree, there being an augmented fifth (enharmonically equivalent to a minor sixth) rather than perfect fifth between the tonic and dominant degrees of the scale, this precluding the possibility of the tonality-affirming V-I cadence or, for that matter, of a full stable tonic voicing. (Put another way, the first five pitches are identical to the whole tone scale, while the last two pitches are shared with the normative "tonal" Ionian / Major mode.) The Lydian Augmented mode consists of the following intervals: tone, tone, tone, tone, semitone, tone, semitone. Observe that, while the bass guitar here provides a harmonic foundation, it never states the subject.

Below, you will find the full engraved score:

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