Lau Nau has been accompanying the film Häxan (Witchcraft through the Ages, Benjamin Christensen 1922) with Matti Bye Ensemble in various occasions:
Cinemateket Stockholm 2017; San Francisco Silent Film Festival, 2010; Ordenshuset Brofästet, Stockholm 2009; Oslo Cinemateket, Oslo 2009; Bio Rex, Helsinki 2007.

The Matti Bye Ensemble score for the restored film is released on a restored copy and DVD by Swedish Film Institute.

This film will got also a new improvised score by Laura Naukkarinen, Matti Bye, Samuli Kosminen and Linda Fredriksson, performed on three nights in WHS Teatteri Unioni, Helsinki March 17-19 2015.