Born in
Genoa, the son of conductor and composer Giordano Bruno Martelli, Martelli is probably best known for the song
Djamballà, the theme song of the 1970 film
Il dio serpente, which reached the first position in the Italian charts. He is also well known for his romantic and professional relationship with pop singer
Mina, with whom he collaborated as a composer and an arranger and with whom he co-founded the music label PDU. He also composed songs and scores for a large number of
Fininvest TV programs, including the jazz-fusion instrumental piece "Round D Minor" for the motor racing show "Grand Prix" hosted by
Andrea de Adamich in the 1980s. Martelli always claimed his innocence. ==Selected filmography==