Morricone also collaborated with directors like Sergio Leone, creating music for the famous Dollars Trilogy, and worked on Hollywood productions from the seventies onwards. Before achieving international fame with his film scores, Morricone was a key arranger at RCA Italiana. In that stage, he helped define the sound of Italian popular music in the sixties, working on hits by artists like Edoardo Vianello and Gianni Morandi. His prolific career, which began with composing classical music in 1946, demonstrates a versatility that allowed him to explore from contemporary music to the melodies that accompany the great stories of cinema.