[3] In January 1896 she created the role of Madeleine in the premiere of Dario De Rossi's opera Fadette at the Teatro Nazionale in Rome.

She was subsequently engaged by La Scala for its 1898–1899 season where her roles included Meg Page in Verdi's Falstaff as well as reprisals of Kaled and Urbain.

[5] Outside Italy Degli Abbati appeared with touring Italian opera companies in South America where her performances included Amneris in Aida at the Teatro Lyrico in Rio de Janeiro in 1899 and both Brangäne in Tristan und Isolde and Tescheretta in Ettore Panizza's Il Medio Evo Latino at the Teatro de la Opera in Buenos Aires in 1901.

Vladimir Jabotinsky wrote about some of her 1901 performances in Odessa for the Odesskie Novosti and had met her through his friend, the young revolutionary Vsevolod Lebedintsev.

Jabotinsky later wrote in his memoirs that Lebedintsev "divided his time and his enthusiasm among his three ideals: the study of astronomy at the university, evenings at the Italian opera, and also love-making with the young singer Armanda degli Abbati.