He is known for introducing innovations such as the whole tone scale, pentatonic scale, exuberance of dominant ninths and eleventh chords, and liner counterpoints.
His most familiar composition is Hating Gabi, a serenade. Other works are Misa Antoniana Grand Festival Mass, Ang Batingaw, Kundiman- Kundangan; Hating Gabi, String Quartet, Kung sa lyong Gunita, Pandangguhan; Amihan, Awit ni Maria Clara, and Larawan Nitong Pilipinas.