Specifics

FormAAAA BBAA BBAA, a ternary form at the large level,
     with a strong cadential closing in theAAAAand the lastBBAA
          remaining "open" in the centralBBAA.
The 2 Divertimenti in 3 voices,
     either in 2 voices with procedure C and a third voice on eachOrbit 1
     or the 3 voices integrated with procedure A.
Chord Patternm76-34, inChromatic (flattening) Minor,
     with the central section inChromatic (sharpening) Major M34-76.
Subject - the well-known Down In The Valley, minorized for the occasion.

Choral Disposition of The Fugue-lines

For the strong cadence of the AAAA -
     Fugue-line 4 with the Orbit-line1-1 in the Soprano voice,
     Fugue-line 1 with theFBin the Bass voice,
     Fugue-line 2, in the same direction as Fugue-line 4, in the Tenor voice, and
     Fugue-line 3 in the Alto voice.
          The static harmonic Primary Note lines exposed in the outer voices (S and B) and
          the kinetic polyphonic Secondary Note lines concealed in the inner voices (A and T).

Divertimenti

The Counter-subject will be used for the two divertimenti,
     the first in chromatic major (sharpening), and
     the second in chromatic minor (flattening).
          See the Complete fugue.

The Complete Fugue

On toClass 9