Career
Dell'Orso also provided vocals to film scores of other Italian composers such as Bruno Nicolai, Piero Piccioni, Luis Bacalov and Roberto Pregadio. Her name is synonymous with Morricone and in particular, the film scores of the original spaghetti westerns of Sergio Leone, where her dramatic voice was deployed as an instrument for the first time and to revolutionary effect. such as in A Fistful of Dollars, The Good, The Bad, and The Ugly (in particular for "The Ecstasy of Gold" track) and Once Upon A Time In The West. On 16 October 2010 Edda Dell'Orso took part in the event Soundtracks – A tribute to Pino Rucher.
The event was sponsored by the Municipal Authorities of San Nicandro Garganico and Manfredonia. In 2013 Edda Dell'Orso collaborated with the Italian composer Alex Puddu, interpreting four songs Il Deserto sotto la pelle, Anna il desiderio chiuso nella stanza, L'occhio nella parete, Il Mare dietro la porta from the album Registrazioni al Buio.