She has appeared internationally, including at the Vienna State Opera, where she performed Mozart roles such as Blonde in Die Entführung aus dem Serail and Despina in Così fan tutte.
[3] Szmytka's repertoire includes other Mozart roles, such as Cinna in Lucio Silla, Donna Anna in Don Giovanni, both Ilia and Elettra in Idomeneo, and Vitellia in La clemenza di Tito.
She also has sung Adina in Donizetti's L'elisir d'amore, Gilda in Verdi's Rigoletto, the title role in his La traviata (in Berlin, Brussels and Düsseldorf), Nanetta in his Falstaff, and Oscar in his Un ballo in maschera.
[3] In 2018, she performed in a concert celebrating a century of Polish independence, as a soloist in Górecki's Symphony of Sorrowful Songs with the Szczecin Philharmonic Orchestra conducted by Wojciech Michniewski.
[1] She recorded works by Karol Szymanowski with the City of Birmingham Symphony Orchestra and Chorus, conducted by Simon Rattle, including Stabat Mater and Litany to the Virgin Mary, Op.