The music features several musicians including the band Tappi Tíkarrass (of which Björk was a member), which contributed the songs "Sperglar" and "Kukl" (a.k.a. "Seiður").
For instance, Tappi Tíkarrass, a punk/pop band led by vocalist Björk Guðmundsdóttir contributed with two of their works: “Hrollur” and “Dúkkulísur”.