After being awarded a First Prize for singing at the CNR at Aubervilliers-La Courneuve, the mezzo-soprano singer Anne-Sophie Zirnhelt performed in operas such as The Return of Ulysses in her hometown of C. Monteverdi, The Magic Flute by WA Mozart, Medea by L. Cherubini, The Tales of Hoffman, La Belle Hélène and Barbe Bleu by Jacques Offenbach, The Medium by GC Menotti notably under the direction of the French conductors Alain Altinoglu and Jean-Claude Malgoire. She took to the genre of sacred music with organists Thierry Escaich and Pierre Pincemaille and performed recitals of French and foreign melodies with pianists Alain Altinoglu and Rémy Cardinale.
From 2014, she put a hold on her classical singing career and created Hers, a rock band that does opera like no other. She is the lead singer, and performs with a guitarist, a bassist and a drummer with whom she also released a first EP in March 2014.
It is also with Hers that she goes to meet pupils in nurseries and primary schools in order to share and help them discover classical music and singing in a very contemporary way.She created the duo Ann So Kids with the pianist Kahina Temzi, and together they offer a show for children that enables the discovery of classical singing using nursery rhymes.
Alongside her career as a singer, she also teaches vocal techniques and performs classical pieces and modern popular songs, and runs vocal discovery workshops for young audiences. Finally, she is a teacher at ENACR and CNAC where she invites students from the professional-level courses to work on the technical placement of their singing voice, to prepare and perform works from classical and current repertoires, as a solo or in a choir.
She also tutors certain pupils individually in their research around the presence and sense of music, the choice of their repertoire in regard to their circus practice.