The finale of Bach's Brandenburg Concerto no. 2 in F Major is a fugue, which means it includes which of the following?

The finale of Bach's Brandenburg Concerto No. 2 in F Major being a fugue highlights its intricate polyphonic structure. In the context of a fugue, episodes play a crucial role as they are the sections that provide contrast to the main thematic material. An episode typically bridges the presentation of the subject, allowing for exploration and development of musical ideas while transitioning between statements of the main theme.

While expositions, themes, and subjects are also integral components of a fugue, focusing on episodes emphasizes how Bach maintains interest and momentum throughout the piece by using contrasting material. In this specific work, the interplay of episodes with the repeated statements of the subject creates a dynamic balance that showcases the complexity and artistry found in Bach’s fugues. Thus, the finale showcases how episodes provide necessary structural and thematic diversity within the overarching framework of the piece.