Mozart wrote his horn concertos, three of them complete and one lacking its slow movement, for the former Salzburg horn-player Ignaz Leutgeb, who had returned to his native Vienna in 1777. Leutgeb was particularly skilled in the relatively new technique of hand-stopping and had won much praise in Paris, as well as in Vienna. The concertos belong to the final period of Mozart's life, works written at the height of his powers.