K. 89/73k

Kyrie in G for 5 voices in 1

William Cowdery, in The Compleat Mozart, writes that Mozart is believed to have written this canonic setting of the Kyrie while under the influence of Florentine court composer Marchese di Ligniville. Einstein is less than kind to di Ligniville's style of music, "the most petrified counterpoint in the world." But apparently Leopold believed that his son, who had been brought up in the world of galant composition, should be thoroughly exposed to this sort of strict, "old-fashioned" music. During this Italian journey Mozart also studied with Padre Giambattista Martini in Bologna, and in October 1770 was admitted to that city's famous Accademia Filarmonica.

References:

Einstein, Alfred. Mozart, His Character, His Work. New York, 1962.
Sadie, Stanley. The New Grove Mozart. New York, 1983.
Zaslaw, Neal, and Cowdery, William, eds. The Compleat Mozart. New York, 1990.