Fugue in C major - BWV 547
It is one of the most original leak, but also
the most densely worked and the entire production complex counterpoint of Bach organ.
The subject is derived from choral "Allein Gott in der Höh sei Ehr" and might also allude in the second part, the four arms of the cross.
In the development of the Fugue, always full of implications of the subject of long and poor entertainment, the subject, which are uxtaposed two different countersubjects, is used both in its original form, is mirrored along its longitudinal axis hypothetical.
The pedal, silent for the first forty-eight beats, enters forty-ninth measure, introducing a fifth voice, and singing is the subject, is its mirror for augmentation, with time values of the notes doubled.
The fugue ends, almost suddenly, the measure 72 (again a multiple of three and nine), just on the last entry of the subject, after a long and rhetorical cadence above the tonic pedal; almost as if Bach deliberately leave pending a speech that, indeed, views proportions and content, would not justify a closure bombastic and redundant.
As in the case of the prelude, the harmonic
path is wide and never dull.
To listen to the Praeludium in C major BWV 547 and to download the score: