Having studied in Vienna, Muszely debuted at Regensburg in 1952. From 1954 to 1968 she was a member of the Hamburg Staatsoper ensemble. She was a regular guest at the opera houses of Berlin and Vienna.

Selected roles:

• Micaela (Bizet: Carmen)
• Donna Elvira (Mozart: Don Giovanni)
• Pamina (Mozart: Die Zauberflöte)
• Olympia etc. (Offenbach: Les Contes d'Hoffmann)
• Marie (Smetana: The Bartred Bride)
• Rosalinde (Strauß: Die Fledermaus)
• Violetta (Verdi: La Traviata)

Selected CDs:

• Bizet: Carmen (in German); Ludwig, Schock, Prey, Berlin SO, cond. Stein, rec. 1961, EMI
• Leoncavallo: I Pagliacci (in German); Schock a. o.,Staatskapelle Berlin, cond. Stein, rec. 1959, Berlin Classics
• Wagner: Das Rheingold (exc.); Otto, Wagner, Staatskapelle Berlin, cond. Kempe, rec. 1959, Berlin Classics

Recordings with Fritz Wunderlich:

• Rose von Stambul (H)

Lehár

• Land d. Lächelns (H)
• Zarewitsch (H)

Mahler

• Symphony No. 8

Tchaikovsky

• Pique Dame/ Y.Onyegin (H)