The studies with Goffredo Petrassi and the association with Gruppo di Improvvisazione Nuova Consonanza let the Avant-garde play an important role in the career of Ennio Morricone, who wrote many contemporary pieces for himself. However, the author later composed soundtracks where dissonance played a major role. For the Italian edition of the film SPACE: 1999 (1975), the cult British TV series, he composed a very neurotic Jazz with muted horns. Also, for the science-fiction film THE HUMANOID (1979), Ennio Morricone created hallucinating strings scores mixed with electronic effects. For SACCO E VANZETTI (1971), an electronic score by Walter Bianchi evokes all the drama of the undeserved death sentence of the two protagonists. Experimental music of great impact in the film and off the screen for famous thrillers such as THE DEATH DEALER (1974), SHORT NIGHT OF GLASS DOLLS (1971). Avant-garde music has always been present in Elio Petri's films set to music by Morricone, such as PROPERTY IS NO LONGER A THEFT (1973). Avant-garde music in the noir cinema of VIOLENT CITY (1970) and A PURE FORMALITY (1994) and in auteur films such as GARDEN OF DELIGHTS (1967) and SARAH'S LAST MAN (1972).