What is the basic characteristics for Bach little fugue in g minor?

Bach's "Little Fugue in G minor," BWV 578, is characterized by its intricate polyphony and counterpoint, showcasing Bach's mastery of fugue form. The piece opens with a clear and memorable subject introduced by the organ, which is then developed and imitated throughout the various voices. It features a range of dynamics and rhythmic variations, creating a sense of movement and tension. The overall mood is reflective and somewhat somber, typical of the minor key.