"Ancestros" is a song by Fernando Rabadán performed in the original key of B minor. The song was composed and released by Rabadán himself, who is a Spanish composer and guitarist. The music is predominantly acoustic, blending elements of flamenco and classical guitar styles. Notable trivia about "Ancestros" includes its inclusion in Rabadán's album "Al Otro Lado del Viento" and its popularity among fans of instrumental guitar music. The melody of the song is characterized by intricate fingerpicking patterns, showcasing Rabadán's technical proficiency and emotional expression.