For piano, 2 horns, violin, and cello. London, with its bustling musical scene, always provided Haydn with welcome surroundings at a time when the flute was extraordinarily popular among English amateurs. The Earl of Abingdon, an accomplished flautist, undoubtedly enjoyed playing these entertaining trios. Abingdon was a member of Haydn's circle of acquaintances in London and a composer in his own right: a theme from one of his songs (The Lady's Mirror) served Haydn for a set of variations in the second trio. Neither men could have foreseen the huge success that these cheerful and straightforward pieces would enjoy among music-lovers all over the world.