Ein Lichtspiel: Schwartz - Weiß - Grau (Light Play: Black - White - Gray) "is a montage of shining machine parts, filmed through a faceted lens and in multiple exposures. The apparatus on display is the artist's Light display machine, a kinetic sculpture constructed between 1922 and 1930. 　　The film is mute. For a soundtrack, Aspen advices for Alexander Scriabin's Prelude D Flat Major, Op. 11, No. 9 and his Prelude E Major, Op. 11 No. 15, almost equally lovely.