Monteverdi, Claudio Giovanni Antonio (1567-1643)
Italian composer, highly important figure in the transition from Renaissance to baroque music.
Born in Cremona, he became interested in the experimental musical dramas of Jacopo Peri, music director at the court of the Medici family. In 1607 Monteverdi's first opera, Orfeo, was produced. Orfeo surpassed all previous attempts at musical drama and established opera as a serious form of musical and dramatic expression. Through skillful use of vocal inflection, Monteverdi sought to express emotion as it would be expressed in the speech of an actor. The orchestra, considerably enlarged and varied, was used not merely as accompaniment but also to establish the moods of the scenes.

In 1613 Monteverdi was appointed to one of the most important musical posts in Italy, choirmaster and conductor at Saint Mark's Cathedral in Venice. From this time on, he wrote numerous operas (many now lost), motets, madrigals, and masses. In madrigals written between 1614 and 1638 he moved away from the Renaissance ideal of equal-voiced polyphony toward newer styles emphasizing melody, bass line, and harmonic support.