The anthem of Andalusia is a musical composition by José del Castillo Díaz15 with lyrics by Blas Infante. The music is inspired by the Holy God, a popular religious song that peasants and laborers in some regions Andalusian singing during siega.16 Blas Infante brought the song to the attention of Maestro Castillo, who adapted and harmonized the melody. The anthem appeal to the Andalusians to mobilize and ask "land and freedom"