In the United States, she has sung at the Mostly Mozart Festival at Avery Fisher Hall at the Lincoln Center in New York, with the San Francisco Symphony and the Chicago Opera Theater.

[11][12][13] Among other roles on international scenes she has sung Dorabella in Mozart's Così fan tutte, Fyodor in Mussorgsky's Boris Godunov and Hermia in Britten's A Midsummer Night's Dream.

[14][15][16] [a] At Folkoperan in Sweden Dahlberg has sung roles such as Cleopatra in Handel's Giulio Cesare, Siebel in Gounod's Faust and Valencienne in Lehár's The Merry Widow.

[a] Both the French music television channel Mezzo and SVT have shown the Lyon Opera production of Mozart's Cosi fan tutte with Dahlberg in the role of Dorabella.

[24] She was also one of the soloists in BBC's In memory of Auschwitz, a European co-production, which in 2005 was awarded with an Emmy as best cultural film, later released on DVD.