Lucio Diestro San Pedro (1913-2002) was a prominent Filipino composer, conductor, and educator known for his significant contributions to Philippine music. His genre primarily encompasses classical and traditional Filipino music, with a focus on choral works and orchestral arrangements. San Pedro's notable compositions include "Ang Pasko ay Sumapit," a beloved Christmas carol in the Philippines, and "Sa Ulan, Sa Init," showcasing his ability to blend Western musical forms with local themes and sensibilities. San Pedro's impact on music extends beyond composition; he was a dedicated educator who influenced generations of musicians in the Philippines. He served as a conductor for various choirs and orchestras, promoting Filipino music both locally and internationally. His work helped elevate the status of Filipino composers in the classical music scene and fostered national pride in indigenous musical heritage. Through his compositions and teaching, Lucio Diestro San Pedro played a pivotal role in the development of a distinct Filipino musical identity, leaving a lasting legacy that continues to inspire artists and musicians in the Philippines and abroad.