[6] She made her debut at the Metropolitan Opera in 1967 as Leonora in Verdi's La forza del destino; a reviewer from Daily News noted that she "created a favourable impression", alongside Richard Tucker, Robert Merrill and Cesare Siepi, with Francesco Molinari-Pradelli conducting.

[9] She performed major soprano roles opposite Mario Del Monaco, Franco Corelli, Plácido Domingo, Luciano Pavarotti, Tito Gobbi, Nicolai Gedda and Bruno Prevedi, amongst others.

[2][5] She also performed in Berlin State Opera, Frankfurt, Salzburg, Zurich, Copenhagen, Bologna, Valencia, Athens, Thessaloniki, Leningrad, Kiev, Odesa, Novosibirsk, Kazan, Bratislava, Ankara, Cairo, and Caracas.

She also performed as Puccini's Tosca and operas by Pietro Mascagni, in Borodin's Prince Igor, as Liza in Tchaikovsky's The Queen of Spades, Leonore in Beethoven's Fidelio, among others.

[5][11][12][13][14] Her broad repertoire also included Puccini's Madama Butterfly, the Countess in Mozart's Le nozze di figaro, the title role in Smetana's The Bartered Bride, Santuzza in Mascagnis's Cavalleria rusticana and Tatjana in Tchaikovsky's Eugene Onegin.

Her singing is characterized by refined interpretation and subtle musicality, paired with the exquisite vocal, technical and stylish qualities which allowed her to create performances of high emotional intensity.

[4] In the late 1960s, the Opera News magazine conducted the survey among the American critics and audience, who chose the four "Golden voices" of the 20th century: Stojanović, Renata Tebaldi, Beniamino Gigli and Mario Del Monaco.

[10][1] In 1975 she recorded an album for the Radio Television Belgrade titled U svetu opere ("in the world of opera"), which contained works by Verdi, Puccini, Giordano, Francesco Cilea, and Ponchielli.