Fugue

Also known as: Fugal Procedure

framework · music theory · philosophical-tradition

Imitative contrapuntal procedure organized around a subject answered in related voices, formalized through Bach's practice and subsequent theoretical codification.

Fugue is the imitative contrapuntal procedure organized around a subject answered in related voices according to characteristic conventions of answer (real or tonal), countersubject, episode, stretto, and tonal departure-and-return. Fugue is procedure rather than fixed form: each fugue develops uniquely from its subject, with no required number of episodes or stretto entries. The procedure crystallized through Baroque practice — Frescobaldi's ricercars, Buxtehude's organ works, and the works of Bach's predecessors — and was canonized through Johann Sebastian Bach's compositions, particularly Das Wohltemperierte Klavier (1722, 1742), Die Kunst der Fuge (1751), and the late organ works. Theoretical codification appeared in Friedrich Wilhelm Marpurg's Abhandlung von der Fuge (1753-1754) and subsequent treatises. Fugue retained importance through the Classical era (Mozart's K.546, Haydn's late quartets), Romantic era (Beethoven's late works including the Grosse Fuge, Brahms), and into the 20th century (Hindemith, Shostakovich's Op.87, Britten).

Originators

Diffuse origin in late-Renaissance and early-Baroque imitative counterpoint; Girolamo Frescobaldi, Dieterich Buxtehude, and contemporaries (foundational practice); Johann Sebastian Bach (canonical exemplification through Wohltemperierte Klavier 1722, 1742 and Die Kunst der Fuge 1751); Friedrich Wilhelm Marpurg (Abhandlung von der Fuge 1753-1754, theoretical codification) high

Year / Decade

Late 16th and 17th century (compositional emergence); 1722-1742 (Bach Wohltemperierte Klavier); 1753-1754 (Marpurg codification) high

Primary sources

Marpurg, F.W. (1753-1754). Abhandlung von der Fuge, Bach, J.S. (1722, 1742). Das Wohltemperierte Klavier, Bach, J.S. (1751). Die Kunst der Fuge, Walker, P. (2000). Theories of Fugue from the Age of Josquin to the Age of Bach high

Core components

Subject (theme stated in single voice in tonic)
Answer (subject restated in second voice, real answer transposing exactly to dominant or tonal answer adjusting interval to remain in key)
Countersubject (recurrent counterpoint accompanying subject after first exposition)
Exposition (initial subject-answer-subject-answer entries in all voices)
Episodes (sequential or modulatory passages between subject entries)
Middle entries (subject statements in related keys)
Stretto (overlapping subject entries before completion)
Inversion, augmentation, diminution as subject transformations
Pedal point and cadential closing

Primary use case

Foundational contrapuntal procedure in Baroque keyboard, choral, and instrumental music; compositional study tool for advanced counterpoint pedagogy; analytical framework for Bach's instrumental works and parallel Baroque and post-Baroque fugal compositions; academic reference in music-theory and music-cognition research; performance-interpretation framework for Baroque and Classical fugal repertoire.

Common criticisms

The textbook fugue (with strict exposition pattern, regular episode structure, and standardized answer formation) is substantially a pedagogical idealization — Bach's actual fugues vary substantially from the textbook description, with George Buelow, Joel Lester, Paul Walker, and Christoph Wolff documenting in different ways how the formal regularities the textbook ascribes to fugue often do not appear consistently even in Bach's works
Marpurg's codification was criticized in its own time as imposing rules J.S. Bach himself did not follow, with the Bach-Marpurg correspondence and subsequent C.P.E. Bach commentary illustrating the tension
modern fugue pedagogy that emphasizes 'rules of fugue' produces academic exercises rather than musically compelling fugues, a critique going back at least to Heinrich Schenker and continuing in modern compositional pedagogy debates
the procedure's predominant historical association with German organ and keyboard tradition obscures Italian, French, and English fugal practice with substantially different conventions
analyzing post-Baroque fugues (Beethoven Grosse Fuge, Brahms Op.18 finale, Shostakovich Op.87) requires extensions of the basic model that make the textbook description inadequate
fugue's role in modern compositional practice is contested between those who treat it as a historical procedure and those who treat it as a living technique.

Lineage

Siblings: Sonata Form, Species Counterpoint