Francisco Santiago (1894-1947) was a prominent Filipino composer and musician, often referred to as the "Father of Kundiman." He played a significant role in popularizing this traditional Filipino genre, characterized by its lyrical and romantic themes. Santiago's music blended Western elements with native Filipino styles, creating a unique sound that resonated with audiences. Notable works include "Pakiusap" (Request), "Mutya ng Pasig" (Muse of the Pasig River), and "Nasaan Ka Irog?" (Where Are You, Beloved?). His compositions often featured rich melodies and emotional depth, making them timeless classics in Filipino music. Santiago's impact on the music scene extended beyond his compositions; he also influenced future generations of Filipino musicians and composers, shaping the development of the Kundiman genre. His dedication to integrating Western musical influences with Filipino cultural elements helped establish a national identity in music during the American colonial period in the Philippines. Today, Francisco Santiago is celebrated for his contributions to Filipino music heritage, and his works remain an essential part of the country's musical canon.