After establishing herself at the Metropolitan Opera, debuting in 1981 where she sang such roles as Fiakermilli in Arabella, Blondchen in Die Entführung aus dem Serail, Gilda in Rigoletto, Zerbinetta in Ariadne auf Naxos, Olympia in Le Conte d'Hoffman, the title role of Stravinsky's Le Rossignol and Clara in Porgy and Bess, Miss Bradley made her European debut in 1983 with the Netherlands Opera in the title role of Handel's Rodelinda.
As an accomplished concert singer, she has worked with such conductors as Zubin Mehta, New York Philharmonic/Israeli Symphony; Riccardo Muti, Philadelphia Orchestra; Mstislav Rostropovich and Fruebeck de Burgos, Washington National Symphony Orchestra; Charles Dutoit, Montreal Symphony/Philadelphia Orchestra; Andre Previn, Pittsburgh Symphony; Michael Tilson Thomas, Los Angeles Philharmonic; Marek Janowski, Hans Graf, Christopher Hogwood, Ralf Weikert, Victor Pablo Perez, among others. A versatile artist, her concert repertoire encompasses important works from the Barock to the 20th century.
Miss Bradley is a frequent guest on the stage of the Los Angeles Opera as Oscar, Blondchen, Zerbinetta, Romilda, Zerlina, and in the 1997-98 season as Pamina in Die Zauberflöte. On European opera stages as Zerbinetta in Paris, Montpellier, Nice, Monte Carlo, Susanna and Pamina in Madrid, Blonchen in Munich, Adina, Blondchen, Susanna, Zerbinetta in Hamburg, Despina in Barcelona, Oscar in Vienna, Rodelinde in Amsterdam and Fiakermilli in Glyndebourne.
Highlights of recent concert engagements have included Brahms Requiem (Palermo, Segovia, San Sebastian), Mahler Symphonies (Los Angeles Philharmonic), Festival D'Auvers-Sur-Oise, Mozart works, Haydn's Orfeo and Euridice in Madrid, as well as appearances with orchestras in Leipzig, Valencia, Warsaw, Krakow, Lyon, Prag, Montreal, Berlin, among others.
As a recitalist in Paris, Tokyo, Lisbon, San Sebastian, Los Angeles and New York Miss Bradley has established her reputation.
Miss Bradley has recorded Fiakermilli in Arabella with Dame Kiri Tekanawa, Jeffrey Tate conducting for Decca Records, Virgil Thomson's Four Saints in Three Acts for Nonesuch records and a live concert recording of Mozart concert works, with members of the Orchestre Symphonique Français.