The mezzo-soprano Rebekka Bigelmayr was last heard with the Göttingen Symphony Orchestra and the Northwest German Philharmonic Orchestra in the alto part of Franz von Suppé's Requiem. She made her debut at the Landestheater Detmold in 2019 in the role of Paoluccia in Niccolò Piccini's "La buona figliuola" conducted by Ivan Törzs. At the 2019 Fontante Festival near Berlin, she played the role of Cécile of St. Arnaud as an actress and singer. Frank Matthus was the director under whom she also made her debut in 2018 at the Kammeroper Schloss Rheinsberg (with guest performance in Estonia) in the world premiere "A Bad Man`s Life" by Marc-Aurel Floros under the direction of Andrei Diakov. At the Theater Bielefeld she could be heard with the Stabat Mater by G.B.Pergolesi. Further roles on stage were excerpts from Samuel Barber's "Vanessa" as Erika, Benjamin Britten's "Albert Herring" as Nancy and Igor Stravinsky's "The Rake´s Progress" as Baba. In spring 2017 she conceived her own production. She put together the secular solo cantata "O numi eterni - Lucrezia" by Georg Friedrich Händel with basso continuo accompaniment as a complex one-hour performance with solo singing, contemporary dance and electroacoustics. Texts written by the singer herself gave the piece that special something, both from tape and spoken live.

She was particularly captivated by the piece Sequenza III (1966) by Luciano Berio, which she expanded with the dancer Marie Nüzel and staged as a post-war work. In 2018 she won the competition "Musik & Vermittlung" in Detmold. At the beginning of her singing career she was awarded the special prize for contemporary music for the first time for the "Berio-Sequenza" in the context of the competition "Jugend musiziert". Invitations from Bayerischer Rundfunk to Nuremberg and the All Saints' Court Church of the Munich Residence followed. In 2017 she was again honoured with a special prize with the Scottish pianist Christopher Harding at the Interpretation Competition of the Detmold University of Music for her outstanding engagement with New Music.

She was a semifinalist at the Federal Singing Competition 2018 at the Berlin University of the Arts.

The mezzo-soprano also regularly performs in concerts. Special treasures such as Maurice Duruflé's Requiem, Joseph Haydn's Stabat Mater and Giovanni Battista Pergolesi`s enrich her repertoire. In addition there are all Mozart masses as well as the oratorios and passions of Johann Sebastian Bach.

With a love for less well-known works, she participated under the direction of Peter Kreutz in the world premiere at Theater Gütersloh and the CD production at CPO of Carl Reinecke's "Wild Swans". She sang several world premieres of song cycles composed especially for her by the young composer Max-Lukas Hundelshausen.

As a performance artist she was a guest at the Pasinger Fabrik in Munich and the Museum am Dom in Würzburg.

Rebekka Bigelmayr has been studying New Music with Prof. Angelika Luz at the Stuttgart University of Music since March 2020. Her most important teachers are Susanne Winter from Munich and Dorothea Geipel from Detmold. They had a decisive influence on her artistic work. She studied with Eeva Tenkanen, Alexis Wagner and Gerhild Romberger at the Hochschule für Musik Detmold. Before her studies, after an external dance training at the Royal Academy of Dance/London, she first learned the American voice training method "Linklater" from the film actress Nicola Tiggeler. Master classes with Margreet Honig and Sibylla Rubens as well as intensive work with Christiane Iven at the Salzburg Summer Academy, the Ettal Music Academy and private lessons gave further impulses.

During her studies Rebekka Bigelmayr was a scholarship holder of the Society of Friends and Sponsors of the Detmold University of Music for several years.

For the winter semester 2019/2020 Rebekka Bigelmayr held a teaching position for singing at the Hochschule für Musik Detmold.