Anna Erdman was awarded the Deutschlandstipendium in 2016; She was a scholarship holder at the MozartLabor 2019 (Mozartfest Würzburg), a scholarship holder from Live Music Now Hannover eV, a scholarship holder from the Anja Fichte Foundation and received a scholarship from the Walter and Charlotte Hamel Foundation. She also won 3rd prize from the Walter and Charlotte Hamel Foundation at the Maritim Music Prize in 2018.

The young singer gained her first stage experience as the third forest elf in Rusalka at Warberg Castle. During her studies she also interpreted the 3rd Lady in The Magic Flute (excerpts), Prince Orlofsky in Die Fledermaus (excerpts), Leonie in Pariser Leben and the composer in Ariadne auf Naxos. In 2018 she made her debut as Hansel in Hansel and Gretel during the Hitzacker music week. In 2019 she appeared as a guest at the Junge Oper of the Hanover State Opera, where she interpreted the title role of Kats-Chernin's Iphis. Shortly afterwards, she made her house and role debut as Siegrune in Die Walküre at the Kiel Opera.

Since the 2019/2020 season, Anna Erdman has been a permanent member of the ensemble at the Landesbühnen Sachsen in Radebeul. There she can be seen as Metella in Parisian Life, Hansel in Hansel and Gretel, Queen Ernestine in The Frog Must Go, Yvonne/Naomi Eisen in the musical Sunday in the Park with George and Suse in The Vampyr.

In recent years, the versatile mezzo-soprano has successfully established herself in concert and oratorio music. She appeared as a soloist in Monteverdi's Vespers, Vivaldi's Gloria and Magnificat and numerous cantatas, masses, passions and oratorios by Bach; also in Beethoven's 9th Symphony and works by Rossini, Mendelssohn-Bartholdy, Liszt and Duruflé.

Anna Erdman sang under the direction of François-Xavier Roth, Iván Fischer, Georg Fritzsch and Justin Doyle. Concert appearances with the RIAS Chamber Choir, the Schola Heidelberg, the Gürzenich Orchestra and the Budapest Festival Orchestra, among others, round off her artistic profile.