Johann Christian Bach arrived in London in the summer of 1762, lured there from Italy by the prospect of success as an opera composer and by the financial rewards attainable in perhaps the most commercially vibrant musical centre in Europe, and there he settled for the remaining twenty years of his life. Almost immediately his impact was felt, and not only in the opera house. Apart from the King's Theatre, which became the focal point of his operatic career, Bach was a motivator in the city's concert life. With Carl Friedrich Abel in 1765 he began collaborating on the subscription concerts that came to bear their names and which figured conspicuously in the calendars of the well-to-do. Commercially minded, he also embraced opportunities to publish his compositions, helping to cultivate an estimable reputation in Britain and on the continent. In 1763 his first set of keyboard concertos was published, and this, with two later sets (1770, 1777), formed a substantial contribution to a genre that owed much of its popularity in Britain to Handel, who had played organ concertos in the intervals of his oratorios from the 1730s.

Bach's prominence as a musician was complemented by his favourable social status: moving in influential circles, he was soon a beneficiary of royal patronage, becoming music master to the queen. His compositions appealed widely, infiltrating a range of cultural milieux from exclusive professional concerts to the fashionable but socially mixed pleasure gardens.