Specifics

Form AAAA BBAA BBAA, a ternary form at the large level.
Chord Pattern M56-54, an extension of the previous M6-4 pattern -
Subject - the fugues of classes 5 and 6 were built using a known melody as S1;
         it is also possible to use a melody as the S2,
                   its inversion becoming the preceding S1.
         We will here use Mary Had A Little Lamb in this manner,
                   its second half acting as S2, inverted as S1.
         The symmetry is the same as in Class 6, so check the orbits carefully.
The subject using the 1-1 orbit line,
          the Counter-subject will use the preferential 3-2 orbit line,
                   the first "X" the 2-1 line and the second "X" the 0-0 line.

Choral Disposition of the Fugue Lines

NOTE the embroidery at the beginning of the Counter-subject
         which produces the preferred sonorities with the Subject.
NOTE also the consecutive fifths (fourths) between the Counter-subject and the first "X"
         which we might preferably eliminate or, at least, camouflage,
                   these consecutive fifths being quite acceptable if the second is diminished.
NOTE, at the beginning of the first "X",
         a displacement to recuperate the MEDIAN from the Subject.
NOTE, at the beginning of the second "X",
         a displacement to avoid interfering with the embroidery in Fugue-line 2.
The last half of this AAAA with serve for the final AA.

Choral Disposition for the strong cadence of the AAAA -
         Fugue-line 4 with its 1-1 must be in the Soprano voice, imposing
         Fugue-line 1 for the FB,
         Fugue-line 2 for the corresponding Tenor voice in the same direction, and
         Fugue-line 3 for the remaining Alto voice,
                   assuring that the static harmonic Primary Notes are exposed in the outer voices, and
                   that the kinetic Secondary Notes are concealed in the inner voices.

Use of a new mode -
         The central AA will be in diatonic sharpening minor (Mode 2),
                   and the opening AAAA as well as the closing AA will be in diatonic major.
The transformation into the new mode is made
         by inverting Soprano with Bass and Alto with Tenor.

Divertimenti

The Complete Fugue

NOTE the words -

On to Class 8