About
Johann Sebastian Bach is the culminating figure of the Baroque era and, in the judgment of most musicians and scholars since, the greatest composer who ever lived. Born in Eisenach into a dynasty of musicians, he served as court organist in Weimar, court music director in Cöthen, and finally Thomaskantor in Leipzig, where he spent the last twenty-seven years of his life composing an almost incomprehensible quantity of music of almost uniformly supreme quality. He was moderately famous in his own time as an organist; his compositions were not widely known. After his death he fell into near-obscurity until Mendelssohn's 1829 revival of the St. Matthew Passion initiated one of the most consequential rediscoveries in cultural history.
Compositional Style
Bach's compositional style is the synthesis of every contrapuntal, harmonic, and formal tradition of his era, elevated to a level of mastery and elaboration that no contemporary approached. His counterpoint is not merely fluent but inevitable: in a Bach fugue, every voice seems to move with complete independence and yet with complete harmonic purpose, so that the ear can follow any single strand and hear the whole at the same time. This is the paradox of great counterpoint, and Bach achieves it more completely and consistently than any other composer.
His melodic invention is endlessly varied — austere and architectural in the organ works, singing and ornate in the cantatas, athletic and inventive in the instrumental solos. The Art of Fugue subjects are angular and concentrated; the cantata arias are lyrical and text-responsive; the solo violin partitas combine both tendencies in music of shattering complexity and beauty.
His harmonic language, built on the equal-temperament tuning demonstrated in the Well-Tempered Clavier, moves through all twenty-four keys with a freedom no previous composer had achieved. His chromaticism is generated primarily by contrapuntal logic — voices moving by half-step for smooth voice-leading — rather than by harmonic shock effect. But the cumulative result of multiple chromatic inner voices can be searingly expressive, as in the Crucifixus from the Mass in B minor.
His formal architecture is vast and varied. The fugue, the chaconne, the da capo aria, the ritornello concerto, the chorale fantasia, the toccata — he mastered every Baroque form and extended each beyond what any predecessor had conceived as its limits. The Well-Tempered Clavier systematizes keyboard temperament; the Goldberg Variations systematize a single bass across thirty variations of increasing ingenuity; The Art of Fugue demonstrates the exhaustive contrapuntal possibilities of a single subject.
Orchestration
Bach's orchestra is the ensemble of late Baroque Germany: strings, pairs of oboes, bassoon, harpsichord continuo, with trumpets, drums, and flutes added for festive or specific expressive purposes. He did not invent new orchestral colors in the manner of Monteverdi or Rameau, but he deployed the established orchestra with a contrapuntal density and a rhythmic energy that transformed it.
In the Brandenburg Concertos — his most explicitly orchestrational showcase — each of the six concerti uses a different combination of soloists and ripieno, exploring a different facet of the concertino/tutti relationship. The First Brandenburg uses a horn ensemble and piccolo violin; the Second groups trumpet, recorder, oboe, and violin as co-equal soloists; the Fifth gives the harpsichord an extended solo that amounts to a cadenza, a century before the Classical cadenza became standard. The Third, for three groups of three-part strings, treats the entire string section as a concertino mechanism, with no clear solo/tutti separation.
His treatment of the solo instruments in his concertos — violin, harpsichord, cello, oboe d'amore — reveals a thorough understanding of each instrument's technical and tonal character. The unaccompanied works (violin partitas, cello suites) show how completely he could realize an orchestral texture through a single instrument's polyphonic capabilities.
In the cantatas and large choral works, his orchestration is deeply integrated with theological symbolism: the trumpet for resurrection and glory; the oboe d'amore (a minor-third lower than the oboe) for tender or intimate affect; the viola da gamba for archaic solemnity; the horn for the shepherd imagery of pastoral movements. Every instrument carries meaning as well as sound.
Key Works
- The Well-Tempered Clavier, Books I & II (1722)
Forty-eight preludes and fugues in all twenty-four keys; the keystone of Western keyboard music.
- Mass in B minor (1749)
Bach's culminating choral masterwork; vast in scale, encyclopedic in style.
- St. Matthew Passion (1727)
The greatest work of the Baroque era; a double-choir setting of the Passion narrative.
- Brandenburg Concertos (6) (1721)
Six concertos for different combinations; the summit of Baroque orchestral writing.
- Goldberg Variations (1741)
Thirty variations on a bass line; one of the supreme achievements of variation form.
- The Art of Fugue (1750)
An unfinished exploration of the fugue in all its contrapuntal permutations.
- Partitas for Solo Violin (1720)
Six works for unaccompanied violin including the Chaconne, the most ambitious solo work for the instrument.
- Cantata No. 82, "Ich habe genug" (1727)
Perhaps the most intimate and personally expressive of his 200+ cantatas.
Influence
Bach's influence is total and ongoing. Mozart studied him through Baron van Swieten; Beethoven played the Well-Tempered Clavier as a child; Brahms edited his collected works. Wagner acknowledged his choral writing as the model for his own. In the twentieth century, Bartók, Shostakovich, and Ligeti all claimed his contrapuntal methods as their foundation. He is the universal teacher of Western composition.
Further reading
Study Bach's methods inside Gradus — annotated scores, listening exercises, and composition challenges built on the same techniques.
Begin Your Journey