Claudio Merulo (; 8 April 1533 – 4 May 1604) was an Italian composer, publisher and organist of the late Renaissance period, most famous for his innovative keyboard music and his ensemble music composed in the Venetian polychoral style. He was born in Correggio and died in Parma. Born Claudio Merlotti, he Latinised his surname (meaning little blackbird) when he became famous in Venetian cultural clubs. Life Little is known about his early life except that he studied in Correggio with Tuttovale Menon, a famous madrigalist who also worked in the Ferrara court; he also studied with Girolamo Diruta, an organist. It is likely that he studied with Zarlino at St. Mark's in Venice. While in Venice he became close friends with Costanzo Porta, a friendship which was to endure for his entire life. On 21 October 1556, he was appointed organist at Old Cathedral of Brescia (Duomo Vecchio), and his skill as an organist must have been impressive, because he became organist at St. Mark's, one of the most prestigious positions for an organist in Italy, in 1557; he was selected over a list of candidates that included Andrea Gabrieli. This was the first important event of his career, and he was considered to be the finest organist in Italy. It is important to note that in St. Mark's there were two organs, and two separate organists were appointed to play them: in 1557 Merulo was appointed to the second, smaller organ, while Annibale Padovano remained at the post of first organist. After Padovano's hurried departure from Venice in 1566, Merulo was appointed to the first organ, and Andrea Gabrieli became the second organist. He was appointed as ambassador of Venetian Republic at the marriage of Franceso de’ Medici and Bianca Cappello in 1579 and wrote music of celebration for Henry III of France, who visited Venice in 1574. In 1584, he suddenly left this position in Venice. The reasons for this are unclear, and somewhat surprising; in Venice he was well-paid, and had a very good reputation; and St. Mark's was one of the most important places for an organist. However, in December 1584 his name appears in payment register of Farnesia Court of Parma. In 1587 he was appointed as organist in Parma Cathedral and from 1591 also in Church of Santa Maria della Steccata. While here, he requested improvements to the organ, carried out by Costanzo