Born in Salzburg, aged 20, Marie-Christine started playing the violin when she was 6.
Since 2005 she has been a student of the Mozarteum University Salzburg where she was accepted to the "Leopold Mozart Institut" (institute for highly talented young musicians) at the age of 13. From 2005 – 2010 violinist Benjamin Schmid was her teacher there, in October 2010 she took up her studies with Prof. Igor Ozim.
As of October 2012 she will be studying in a special "excellence programme" with Prof. Ana Chumachenco at the Musikhochschule in Munich.
After having won the Austrian National music competition "Prima la Musica" twice in 2004 and 2006 Marie-Christine took the First Prize in the European Violin Competition "Alfredo e Vanda Marcosig" in Gorizia / Italy at the age of 14.
In the following year she was the winner of the Austrian Lions Music Competition, received the 2nd Prize in the "Gradus ad Parnassum" Violin Competition and was also awarded Salzburg's "Lions Club Prize 2008".
In 2009 (and again in 2011) she was invited to play as a "Young Artist" in the "Starling DeLay Symposium" at the Juilliard School in New York, chosen out of several hundred applicants from all over the world. Three months later she became prize winner of the "International Summer Academy Mozarteum Salzburg", including her debut at the Salzburg Festival.
Above all, she was the winner of the Yehudi Menuhin Medal as "String Player of the Year" of the Mozarteum University Salzburg at the age of 17.
After taking the 3rd Prize in the "International Soloist Competition" in Zurich/Switzerland as the youngest participant and winning the Austrian "Eurovision Young Musicians" Competition Marie-Christine acclaimed her probably biggest success up to now:
She won the 1st Prize as well as two special prizes (one of them for the best interpretation of a work by J.S.Bach) in the worldwide "International Louis Spohr Competition 2010" in Weimar / Germany.
Marie-Christine Klettner gave her solo debut at the age of 11 playing W. A. Mozart's Violin Concerto in G-Major.
Since then she has been soloing with the Mozarteum Orchestra Salzburg, Camerata Salzburg, Staatskapelle Weimar, Illinois Philharmonic Orchestra, Romanian National Radio Orchestra, Bath Philharmonic Orchestra, Stadtorchester Solothurn, Franz Liszt Chamber Orchestra and the Philharmonie Salzburg among others.
She has given important recitals in Austria, Germany, Switzerland, Italy, France, Holland, Great Britain, Slovenia, Romania, Chicago and New York.
The young violinist has also been playing various pieces in numerous Radio and TV recordings and broadcasts.
In 2012 Marie-Christine was invited to take part in the "Verbier Festival" in Switzerland and in the International Seiji Ozawa Music Academy.
One of her most important engagements in 2012 was the performance of N. Paganini's Violin Concerto No. 1 with the Mozarteum Orchestra at the "Großes Festspielhaus Salzburg".
Masterclasses with Ana Chumachenco, Zakhar Bron, Pamela Frank, Benjamin Schmid, Igor Ozim, Ivry Gitlis and Paul Kantor, Joel Smirnoff, David Kim, Glenn Dicterow and David Updegraff in the US.
Marie-Christine currently plays a violin by Jean Baptiste Vuillaume "The Dee Shapland" Paris 1849 on loan from an English private foundation.