gigue

French gigue meant both a type of fiddle and the lively dance performed to its music. The word derives from Middle High German Geige (fiddle, violin), which entered Old French as gigue in the late medieval period. The same word, through a slightly different phonetic path, became English 'jig' — a word that has remained current in English for both the fast dance and the name of a tune type. The cognates spread across European languages during the 16th and 17th centuries: Italian giga, German Gigue, English jig. All of them trace back to the same Germanic word for the stringed instrument whose scraping, driving sound was inseparable from the dance it energized. The instrument named the music; the music named the dance; the dance took the instrument's name back as its own.

The jig as a dance form has roots in the British Isles — Irish, Scottish, and English traditions all have jig forms with regional variations — and these folk traditions were what French musicians encountered when the gigue entered formal compositional practice in the 17th century. The French gigue and the Italian giga developed as stylized versions of the British folk form, transformed into the musical language of the baroque suite. The characteristic compound meter — usually 6/8, 12/8, or 6/4 — gives the gigue its characteristic triplet-feeling lilt, the sense of two beats each subdivided into three, which produces the dance's bouncing, asymmetric energy. In the baroque suite, the gigue was conventionally the final movement: after the stately allemande, the flowing courante, the grave sarabande, and any optional dances, the gigue released the accumulated tension in a rapid tumble of triplet figures.

Bach's gigas are masterclasses in applied counterpoint — pieces that disguise their technical complexity beneath their irresistible rhythmic momentum. The Gigue from the French Suite No. 5 in G major uses invertible counterpoint: the opening theme, when turned upside down, becomes the continuation of the piece in its second half. The gigue from the Partita No. 1 in B-flat major runs two interlocking voices across the keyboard at a pace that sounds improvisatory but is in fact exactingly constructed. The gigue from the Cello Suite No. 6 in D major is a tour de force for a single melodic instrument creating the impression of harmonic fullness through the velocity of its arpeggiated figures. The dance form's energy was, for Bach, an invitation to show what maximum rhythmic vitality could sustain.

The English jig maintained a separate and more continuous life as a social and theatrical dance. The hornpipe — a faster variant danced in English and Irish traditions — survives as the defining competitive category in Irish step dancing competitions. The Irish jig, with its characteristic 6/8 or 9/8 meter and its demand for rapid, precise footwork, is one of the most widely studied folk dance forms in the world, exported through Irish diaspora communities to every country where Irish immigrants settled in the 18th and 19th centuries. The word that began as a fiddle's name now labels both the most rigorous form of baroque keyboard composition and the competitive athletic discipline performed at schools and festivals from County Clare to Buenos Aires.