The 1949 Cetra Recordings: Works by Bellini, Mozart & Wagner (The Original Sound of Maria Callas)

Norma, Act I Scene 4: Aria, "Casta diva" (Norma) [Unreleased 1949 CETRA Take - Orchestral Introduction and First Verse Only]

Tristan und Isolde, WWV 90, Act III Final Scene: "Mild und leise" (Isolde) [Sung in Italian]

Norma, Act I Scene 4: Aria, "Casta diva" (Norma) [1949 CETRA Recording - Version without Chorus]

Norma, Act I Scene 4: Cavatina, "Ah! bello a me ritorna" (Norma) [1949 CETRA Recording - Version without Chorus]

I puritani, Act II Scene 3: Scena, "O rendetemi la speme" (Elvira) [1949 CETRA Recording]

I puritani, Act II Scene 3: Cavatina, "Qui la voce sua soave" (Elvira) [1949 CETRA Recording]

I puritani, Act II Scene 3: Cabaletta, "Vien, diletto, è in ciel la luna" (Elvira) [1949 CETRA Recording]

I puritani, Act II Scene 3: Scena e Cavatina, "O rendetemi la speme ... Qui la voce sua soave" (Elvira) [1949 CETRA Recording - Alternative Take and Second Official Recording]

I puritani, Act II Scene 3: Cabaletta, "Vien, diletto, è in ciel la luna" (Elvira) [1949 CETRA Recording - Repeat of Track 7]

Don Giovanni, K. 527, Act II Scene 12: No. 23b. Rondo, "Non mi dir, bell'idol mio" (Donna Anna) [First Take]

Don Giovanni, K. 527, Act II Scene 12: No. 23b. Rondo, "Non mi dir, bell'idol mio" (Donna Anna) [Second Take]