San Pedro's works include a great variety of musical forms ranging from band music, concertos for violin and orchestra, choral works, cantatas, chamber music, and songs for solo voice. He also served as a conductor of many Filipino bands such as Peng Kong Grand Mason Concert Band, the San Pedro Band of Angono, and the Banda Angono Numero Uno.
Major Works • The Devil's Bridge • Malakas at Maganda Overture • Lulay •
Sa Ugoy ng Duyan (with the collaboration of
Levi Celerio) • Dance of the Fairies • Lahing Kayumanggi
Compositional Philosophy San Pedro is known for advocating "creative nationalism" when composing his own music. According to him, representing Filipino identity doesn't just fall from literally using the material from folk songs but rather getting the most important essence, style and common touch of being a Filipino. A good example of his "creative nationalism" was his "Lahing Kayumanggi" where he dedicated this piece to "the heroic struggle of the Filipino people for liberation from colonization." {{Blockquote == References ==