Arnaldo Freire is a graduate of the Consevatório Musical Guarulhos. He also studied at the Conservatory of Music and the Instituto Souza Lima on Booklyn paulista.
He studied Composition at the Federal University of Goias - UFG. His composition "Apocalypse," for solo guitar was awarded by the Culture Secretariat of Goiania.
The award-winning short film by Roxanne Torres, “Catadores de Papel, " has an original score by Arnaldo Freire.

He Also has pieces in the soundtracks to: “Entre Memórias e Conquistas,” “Umas e Outras,” and “Maria da Gruta,” all directed by Lázaro Ribeiro .

In his compositions, you see a refined Brazilian-ness: modinhas, frevos, sambas, valsas and other colors are mixed with post-tonal techniques, refined counterpoints and unusual instrumentation.

Arnaldo Freire is listed in the guide, "Guia de Música Contemporânea Brasileira", edited by CDMC - Brasil / Unicamp, a subsidiary of Centre de Documentation de la Musique Contemporaine, based in Cité de la Musique, Parc de la Vilette, Paris.