In a film primarily concerned with death, it’s fitting that the soundtrack serves as an elegy. Graceful, portentous, and dramatic, Ennio Morricone’s score for Sergio Leone’s Once Upon a Time in the West is more or less devoid of the whoops, shrieks, and catchy electric guitar that helped both men make a name for themselves on A Fistful of Dollars in 1964, a soundtrack that became one of the most iconic and evocative of its era. But despite that, it might just be the best thing one of the 20th century’s finest composers ever put his name to. Italian director Sergio Leone had made a few…