Guerra-Peixe (1914-1993) was born in Petrópolis, son of Portuguese immigrants with Romani origins. Throughout his lifetime, Guerra-Peixe held numerous positions playing in orchestras and working as a composer and arranger in the production of radio broadcasts, recording, films, and cultural documentaries. His music can be heard in many Brazilian films. Although he strongly embraced serialist techniques through his compositional studies with Koellreutter, Guerra-Peixe took a strong interest in northeastern Brazilian traditional music and culture and integrated elements of Brazilian nationalism to varying degrees in his compositions. As an ethnomusicologist, he wrote Os maracatus do Recife (1955).