The early Baroque period saw a shift from Renaissance polyphony to solo singing with instrumental accompaniment. This era, spanning 1600-1650, birthed opera and monody, emphasizing individual expression and emotions influenced by ancient Greek drama and humanist ideals. Key figures like Monteverdi and Peri pioneered new forms such as opera and cantata. Innovations included basso continuo, recitative, and aria, which laid the foundation for Baroque music's emotional expressiveness and virtuosic vocal style.