She toured in South America, Germany, Switzerland and Norway, performing Fiora in Italo Montemezzi's L'amore dei tre re.

[4] After her marriage in 1940 to the architect Giuliano Rossini and the outbreak of World War II, Carbone rarely sang outside Italy.

[4] She came out of retirement briefly in 1974 to sing in a concert conducted by Antonio Pedrotti commemorating the 30th anniversary of Riccardo Zandonai's death.

A lengthy interview in which she reflects on her career and the composers she sang for appears in Lanfranco Rasponi's 1982 book The Last Prima Donnas.

[10][11] When the Otello was reissued in 1957, the reviewer in The New Records wrote, "Maria Carbone surprised this writer, he had forgotten what a fine singer she was on these discs.