Working together since 2015 vocalists Antoine Läng and Jason Kahn's practice draws on traditional contexts, such as the Swiss betruf, and contemporary approaches like extended vocal techniques, improvisation and noise, to map the territories of social, geographic, cultural and acoustical spaces.

They also collaborate with other musicians, composers and artists such as Olga Kokcharova (Geneva, composer, sound artist), Anouck Genthon (Geneva, violinist, ethnomusicologist) and Maria Trofimova (Geneva, photographer).