The treatment of this fugue, for all its consummate skill, is comparatively simple. It does not employ the more subtle devices often employed in fugues, of which may be mentioned the following:
1. "Inversion:" The subject turned upside down, while retaining its identity by means of its rhythm.
Original Subject.
![[PNG]](#5102994518728001825_pag42_score1a.png.id-13939179804988020.wrap-0.html.html){kind=link}
Inversion.
![[PNG]](#5102994518728001825_pag42_score1b.png.id-8994575507623121243.wrap-0.html.html){kind=link}
FIGURE XII. THE DEVICE OF "INVERSION."
