Abstract: The present text presents our conclusions on examining guitar player Nélio Rodrigues’s statement that Prelude
No. 2 for Guitar (1970) by César Guerra-Peixe was “idealized” from the soundratck of the film O Diabo Mora no Sangue (1967, The Devil Dwells in the Blood), by Cecil Albery Thiré. After discussing general questions relating the score of the five
Preludes for Guitar published in 1973, we compare the characteristics of Prelude No. 2 not only to the resources previously
used by Guerra-Peixe in the music composed for the mentioned film but also to those used in the duos for song and
guitar Nesta Manhã (This Morning); Resta, Sim, É Remover (It Will Have to Be Removed); and Mãe d’Água (1969).
Keywords: Guerra-Peixe, classical guitar, Preludes, soundtrack.