She was born in Komotini. She is the niece of musicologist Alexandra Lalaouni and first cousin of the pianist Lila Lalaouni. She grew up in a musical family and began piano and singing lessons at a young age. She initially studied at the Athens Conservatory, in the class of Marika Kalfopoulou, and graduated with honors. She continued her vocal, piano and opera studies for six years at the Mozart Academy of Salzburg [Akademie Mozarteum Salzburg]. Thereafter she studied at Munich’s Higher School of Music and Theater [Hochschule für Musik und Theater München], close to Victoria von Prestel and principal musicians Heinz Derbacher and Kurt Prestel (1960-62). She made her debut at the Greek National Opera in 1960, as Gilda in Rigoletto, a production in which baritones Piero Cappuccilli and Manuel Ausensi also took part (1959-60). She collaborated with the Greek National Opera during 1959-1974 and sang coloratura soprano roles in nine operas and operettas in 24 productions and/or revivals of productions. She distinguished as Lucia di Lammermoor, Olympia (Les contes d’Hoffmann), Queen of the Night (Die Zauberflöte), Musetta (La bohème), and Rosina (Il barbiere di Siviglia). She also interpreted leading roles in the operettas Victoria and her Hussar [Viktoria und ihr Husar], Countess Mariza [Gräfin Mariza] and The Godson [O vaftistikos]. She took part in the musical production Showboat. She performed recitals and participated in concerts in Greece and abroad: Brussels, Frankfurt, Munich, Tel Aviv, etc. She collaborated with the Hellenic Greek Radio and Television Orchestra. She taught at the Greek Conservatory of Athens and the Greek Conservatory of Volos. In 1980 she founded the Angela Lalaouni’s Conservatory, Center of Musical Studies, in Athens (Papagos), as well as an annex in Karditsa. She was president of the Opera-Musical Drama Actors’ Union for 27 years and an active trade unionist.