In 1981, together with Chrichan Larson and Anna Lindal, she founded the Trio Des Lyres, a string trio dedicated to contemporary music and also dedicated to the interpretation of classical repertoire on instruments of the time.
Then in 1992 with Irmgard Zavelberg, Tinta Schmidt von Altenstadt and Ulrike Zavelberg. She founded the Rubin Quartet, a quartet awarded in 1996 in Evian for Mozart’s best performance.
Sylvie Altenburger is a member of the “Ensemble Aventure”, an ensemble dedicated to contemporary music.

Her discography includes many records with Tristan Murail’s solo piece “C’est un jardin secret, ma soeur, ma fiancée…”, “Ikhoor” of Iannis Xenakis or the complete quartet work of Bela Bartok.
Sylvie Altenburger is a soloist as well as a chamber musician, performing in France, Germany, Holland, Spain, Belgium, Switzerland, Norway, Sweden…

Sylvie Altenburger has been teaching viola and chamber music at the Musikhochschule Freiburg since 2002.