An accomplished accordionist who graduated with honors from the hight schools of music Freiburg, Germany (studying with Teodoro Anzellotti) and Basel, Switzerland (Master’s degree specialized in contemporary music), Marie-Andrée Joerger performs as a soloist, as well as with orchestras and other ensembles over all the world.

She played in festivals such as "ÖGZM" in Vienna-Austria, "Festival Folia" in Montreal-Canada, “Festival International de Musique” in Colmar-France, "Zelt-Musik-Festival” in Freiburg-Germany, "Festival Musica" in Strasbourg-France, "Akordeono Festivalis" in Vilnius -Lithuania, “Festival Manifeste” in Paris-France, "Venice Biennale" in Italy, “Upol” in Nova Gorica-Slovenia, “Artsmondo” in Strasbourg-France, to collaborations with ensembles such as the National Philharmonic Orchestra of Russia, the Philharmonic Orchestra of Freiburg, the Toulouse Chamber Orchestra, the Philharmonic Orchestra of Nancy and Strasburg. She has performed alongside several renowned soloists such as Armand Angster, Marc Coppey, François Kubler, Daishin Kashimoto, and Pierre Strauch. She has also won several international competitions in Geneva (Swizterland), Atri (Italy), and Montrond les Bains (France).

In April 2021 his first solo album Bach en Miroir was released on the Klarthe label, widely acclaimed by critics (Album of the Year 2021 - Le Monde, France Musique, Mediapart, Pizzicato, Classic News, Rai3....).

An active member of the contemporary music scene, Marie-Andrée Joerger has collaborated with composers such as Bernard Cavanna, Daniel D’Adamo, Thierry Escaich, Beat Furer, Martin Matalon, Misato Mochizuki, Alberto Posadas, Annette Schlünz, premiering new pieces as a soloist or within an ensemble as Thierry Escaich's first solo work for accordion at the Berlin Philharmonic Hall.

Her passion for chamber music has lead to collaborations with Vincent Dubois (organ, titulaire of the Notre Dame de Paris Cathedral) and Antoine Pecqueur (bassoonist in the orchestra les Siècles). She is a member of the La Philharmonie de Poche, an ensemble composed of orchestral soloists, the modern Ensemble Linea, and is regularly invited to perform with the Strasbourgeois modern ensemble Accroche Note.

For the past 13 years, she has also organized the annual Agora International Academy and the Agora International Festival in Switzerland with V. Lhermet and S. Tissot.

Marie-Andrée Joerger has been teaching at the Conservatoire de Strasbourg and the Académie Supérieure de Musique de Strasbourg. She is often invited to give master classes and as a jury in International competitions in Italy, Lithuania, Poland, Slovenia, Switzerland, Germany.