Mathias Kjøller, born in 1985, began to play the clarinet at age 10. In 2004 he entered the Royal Academy of Music in Aarhus, studying with John Kruse (Royal Danish Opera), and in 2007 - at age 21 -, he was appointed principal clarinettist in Aarhus Symphony Orchestra.
After finishing studies in Aarhus, Mathias entered the Royal Academy of Music in Copenhagen, studying with Lee Morgan (Royal Danish Opera) where he won the soloist competition and played the Nielsen Concerto with conductor Michael Schønwandt.
He also regularly travels to study with the internationally renowned clarinet professor, Yehuda Gilad in Los Angeles.
In 2011, he was appointed associate principal clarinettist in the Danish Radio Symphony Orchestra, and after careful consideration, he is now again playing in Aarhus Symphony Orchestra.
In 2013, he was awarded 2nd prize, the orchestra prize and the prize for the best interpretation of the Carl Nielsen clarinet concerto in the International Carl Nielsen Clarinet Competition.
As a soloist, he has played with Odense Symphony Orchestra, Copenhagen Philharmonic Orchestra and several times with Aarhus Symphony Orchestra - one of them at the official opening of the Symphonic Hall of Aarhus Symphony Orchestra.
Besides his positions in Aarhus and Copenhagen, he has also played in the Bergen Philharmonic Orchestra as guest principal clarinettist. As an orchestral musician, he has been working with conductors like Raphael Frühbeck de Burgos, Marc Soustrot, Gianandrea Noseda, Herbert Blomstedt, Ed Gardner, Juanjo Mena, Alexander Vedernikov.Besides his studies with Kruse, Morgan and Gilad, Mathias Kjøller has studied with Ricardo Morales, Hans Christian Bræin, Gabor Takacs, Karl Leister og Martin Fröst, and he received noumerous awards and scholarships.