Dark Matter Was One Of The First Tracks Björk Created By Improvising Using A Computer Game Controller To Play With Musical Material. In This Track Björk And Mark Bell Explored Different Music Scales — The Collections Of Notes On Which Whole Pieces Of Sections Are Usually Based. Dark Matter Features Heavy Gibberish Since The Dark Matter Phenomena Are Directly "unexplainable". The Song Is In Free-Time — It Lacks A Regular Pulse And Beats— And These Musical Qualities Evoke The Idea Of Timelessness And The Vastness Of Space And There Is An Analogy Between The Amorphousness Of Space And The Fluid Song Structure.