: While the second voice plays the answer, the first voice continues with a secondary melody that fits harmonically.
: A second voice enters with the subject transposed, usually to the dominant key (a fifth higher). If it's a literal transposition, it is a "real answer"; if slightly altered to stay in the home key, it is a "tonal answer". : While the second voice plays the answer,
: The first voice introduces the central melody in the home (tonic) key. : The first voice introduces the central melody
: Often used near the end to build intensity, this technique involves overlapping subject entries so that one voice starts before the previous one has finished. They often use fragments of the subject (motifs)
: These are transitional passages that do not contain the full subject. They often use fragments of the subject (motifs) and provide harmonic relief while modulating to new keys.
: The subject reappears in various related keys to maintain momentum. The Final Section (Recapitulation) : The subject returns to the original tonic key.
A fugue is a sophisticated musical form defined by the systematic imitation of a principal theme, called the , across multiple simultaneously sounding voices . Emerging as a pinnacle of Baroque composition—most famously refined by Johann Sebastian Bach —it relies on strict rules of counterpoint to create a dense, "conversation-like" texture. Structural Anatomy of a Fugue