Johann Christian Bach

• 1. Introduction

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  Johann Christian Bach was born on the 5th of September 1735 in Leipzig, Germany, the youngest son of one of the most towering figures in Western music. His father, Johann Sebastian, personally guided his early musical training. By the time Johann Christian died on New Year's Day 1782, he had premiered operas in London, taught the young Wolfgang Amadeus Mozart, won a landmark copyright case in English law, and invented a new musical form that would shape the Classical era. Yet he died so deep in debt that Queen Charlotte herself stepped in to cover the costs of his estate. How does the son of Johann Sebastian Bach go from the shadow of a giant to the center of London's fashionable concert life, only to fall into ruin? And what exactly did he pass on to Mozart that scholars would later call him "The only true teacher of Mozart"?

• 2. From Leipzig to London

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  Carl Philipp Emanuel Bach, Johann Christian's half-brother, was twenty-one years his senior and was considered the most musically gifted of Johann Sebastian's sons at the time. After his father's death, Johann Christian moved to Berlin to study with him. In 1754 he left Berlin for Italy, where he studied with the celebrated Padre Martini in Bologna. Six years later he was appointed organist at Milan Cathedral, a prestigious post for a young German. During this Italian period he converted from Lutheranism to Catholicism, reportedly for political reasons, and devoted much of his energy to church music. His first major work, a Mass, received acclaimed performances in 1757. In 1762, he traveled to London to premiere three operas at the King's Theatre, and his reputation shifted from church composer to opera maestro almost overnight.

• 3. The English Bach

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  Orione premiered at the King's Theatre on the 19th of February 1763, and it helped establish Johann Christian as a leading figure in London's musical life. The castrato Giusto Fernando Tenducci, who became a close friend, created the title role in Adriano in Siria at the King's Theatre in 1764 or 1765. These successes earned Bach the role of music master to Queen Charlotte. He gave performances of symphonies and concertos at the Hanover Square Rooms, London's premier concert venue in fashionable Mayfair, where the Georgian townhouses nearby supplied a wealthy and attentive audience. One of London's primary literary circles, which included Jane Timbury, Robert Gunnell Esq., Lord Beauchamp, and the Duchess of Buccleuch, counted Bach among its acquaintances, with members attending his events regularly. In 1766, he met soprano Cecilia Grassi, who was born in 1746 and was eleven years his junior; they married shortly after. The couple had no children.

• 4. Bach-Abel Concerts

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  Carl Friedrich Abel, a German virtuoso on the viola da gamba and a close friend, joined Bach in organizing what became known as the Bach-Abel concerts. The series began at Abel's residence and grew popular enough to require larger venues. The concerts featured new works by both Bach and Abel, and also gave emerging composers such as Haydn a public platform for their music. Audience members prepaid for an entire season's worth of performances through a subscription model, cultivating a regular and committed crowd. The significance of this went beyond entertainment. Before these concerts, live classical music was largely confined to private aristocratic settings. The Bach-Abel subscription format opened those performances to the middle class, broadening who could participate in musical culture. The series eventually declined as musical tastes shifted and Bach's own health and finances deteriorated.

• 5. Copyright and Decline

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  In 1777, Johann Christian Bach won Bach v Longman, a court case that established in English law that copyright protection extended to musical scores. This was not a sudden concern for him. Upon arriving in London in 1762, he had already begun pressing for recognition of his rights as a composer, and he was granted an exclusive right to publish his music for fourteen years. The legal victory came, however, as his wider fortunes were turning. By the late 1770s his popularity was fading and his finances were in serious trouble, made worse when his steward embezzled his money. He died on New Year's Day 1782 deeply in debt. Queen Charlotte, the monarch he had once served as music master, covered the expenses of his estate and arranged a life pension for Cecilia Grassi, his widow. Bach was buried in the graveyard of St. Pancras Old Church in London.

• 6. Mozart's Teacher

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  In 1764, Mozart was eight years old and traveling Europe with his family when he met Bach in London. Bach spent five months teaching the boy in composition. Scholars Teodor de Wyzewa and Georges de Saint-Foix later described Bach as "The only true teacher of Mozart." One lasting thread runs through Mozart's early symphonies: a preference for wind instruments carrying their own melodic lines rather than simply doubling string parts, a philosophy Bach held and clearly passed on. Mozart arranged three sonatas from Bach's Op. 5 into keyboard concertos. The slow movement of his Piano Concerto No. 12 carries a reference to the overture of Bach's opera La calamita de cuori. In his later years Mozart often acknowledged the artistic debt he owed to Johann Christian. When news of Bach's death reached him in 1782, Mozart's response was direct: "What a loss to the musical world!"

• 7. The Sinfonia Concertante

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  Bach is credited with developing the sinfonia concertante as a distinct Classical form. The genre grew out of the Baroque concerto grosso but took on new characteristics under his hand. Both Mozart and Haydn were among the contemporaries shaped by this form, and it served as a structural framework for compositions that followed. The catalog of Bach's works, assigned "W" numbers from Ernest Warburton's thematic catalog published by Garland Publishing in New York City in 1999, encompasses eleven operas alongside chamber music, orchestral works, and keyboard compositions. Charles Burney, in the fourth volume of his General History of Music, left a substantial account of Bach's career, preserving a portrait of the composer that might otherwise have faded with his reputation.