Anton Webern 1991
Anton Webern's "Langsamer Satz" for string quartet was performed as part of the "My GAIA" concert during the Festival's 2012 edition. Composed in 1905, "Langsamer Satz" is in traditional sonata form and in the key of C Major; it would be another twenty years before Webern turned to twelve-tone technique. "Langsamer Satz" premiered in 1962, seventeen years after Webern's death, and has the longest playing time of any piece in his body of work.

Le sphinx 1986
Fragments of a text by Jean Genet – “Four Hours in Chatila” – are illustrated by summer images of a park in Brussels. The contrast between what is seen and what is said attempts to stop, to break the flow of information which tends to neutralize horror.