Angelo Notari (b. 1555, d. 1624) was an influential Italian composer, primarily recognized for his contributions to the early Baroque music period. Active during the late Renaissance and early Baroque, Notari's work encompassed various genres, including sacred music, madrigals, and instrumental compositions. He is most noted for his collection of vocal music, particularly his book "Il primo libro delle canzoni" published in 1592, which features a range of styles and showcases his innovative use of harmony and texture. Notari was also a key figure in the development of the concerto style, blending vocal and instrumental elements that would influence later composers. His music, characterized by expressive melodies and intricate counterpoint, played a significant role in the transition from Renaissance polyphony to Baroque homophony. While Notari may not be as widely recognized as contemporaries like Monteverdi, his contributions significantly impacted the evolution of early Baroque music, helping to shape the future sound of Western classical music. His works continue to be studied and performed, reflecting the ongoing interest in the roots of Western musical traditions.